data/eval.jsonl

{"case_id": "cc-000", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "grounded", "context": "Acme Corp reported revenue of 12,000 million yen for fiscal 2024, with operating profit of 1,800 million yen.", "answer": "Acme Corp reported revenue of 12,000 million yen for fiscal 2024.", "focus_value": "12,000", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 12,000", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.808, "rationale": "The figure appears literally in the context."}
{"case_id": "cc-001", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "架空商事の2024年度売上高は12,000百万円、営業利益は1,800百万円でした。", "answer": "架空商事の売上高は12,000百万円です。", "focus_value": "12,000", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 12,000", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.175, "rationale": "桁区切りを正規化した上で文脈に literal に存在する。"}
{"case_id": "cc-002", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "問い合わせ件数は約1,200件に達した。", "answer": "問い合わせ件数は1200件でした。", "focus_value": "1200件", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1,200件", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.105, "rationale": "「約」は数値トークンの外側、カンマは正規化されるので一致する。"}
{"case_id": "cc-003", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "grounded", "context": "The service handled approximately 1,200 requests per second at peak.", "answer": "At peak the service handled 1200 requests per second.", "focus_value": "1200", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1,200", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.145, "rationale": "Thousands separator and the hedge 'approximately' are both normalised away."}
{"case_id": "cc-004", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "当期の最終損益は▲1,200百万円の赤字となった。", "answer": "最終損益は▲1,200百万円でした。", "focus_value": "▲1,200", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: ▲1,200", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.107, "rationale": "▲ は日本の会計表記の負号として正規化され、-1200 として一致する。"}
{"case_id": "cc-005", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "grounded", "context": "Total addressable market is estimated at 3.5B USD.", "answer": "The total addressable market is 3.5B USD.", "focus_value": "3.5B", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 3.5B", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.129, "rationale": "The B magnitude suffix expands to 3.5e9 on both sides."}
{"case_id": "cc-006", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "登録ユーザー数は1.2万人を突破した。", "answer": "登録ユーザー数は1.2万人です。", "focus_value": "1.2万人", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1.2万人", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.092, "rationale": "万 は 1e4 に展開され、両側とも 12000 になる。"}
{"case_id": "cc-007", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "grounded", "context": "The sensor operates at 2.4e3 Hz under nominal load.", "answer": "The sensor operates at 2.4e3 Hz.", "focus_value": "2.4e3", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 2.4e3 Hz", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.114, "rationale": "Exponent notation is parsed on both sides."}
{"case_id": "cc-008", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "Acme reported revenue of 12,000 million and operating profit of 1,800 million for fiscal 2024.", "answer": "That gives an operating margin of 15%.", "focus_value": "15%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 1,800 / 12,000 * 100 (percentage) = 15", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.519, "rationale": "1,800 / 12,000 * 100 = 15; the formula is returned as evidence."}
{"case_id": "cc-009", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "derived", "context": "2024年度の売上高は12,000百万円、営業利益は1,800百万円でした。", "answer": "したがって営業利益率は15%です。", "focus_value": "15%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 1,800 / 12,000 * 100 (percentage) = 15", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.22, "rationale": "1,800 / 12,000 * 100 = 15 で導出できる。"}
{"case_id": "cc-010", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "Revenue was 100 million and total costs were 40 million.", "answer": "Profit therefore came to 60 million.", "focus_value": "60", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 100 - 40 = 60", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.203, "rationale": "100 - 40 = 60 is a two-term derivation."}
{"case_id": "cc-011", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "derived", "context": "従業員数は前年度3,200人、今年度3,400人でした。", "answer": "増加数は200人です。", "focus_value": "200人", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 3,400人 - 3,200人 = 200", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.187, "rationale": "3,400 - 3,200 = 200 の差分導出。"}
{"case_id": "cc-012", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "Headcount grew from 3,200 to 3,400 over the year.", "answer": "That is a growth rate of 6.25%.", "focus_value": "6.25%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: (3,400 - 3,200) / 3,200 * 100 (change rate) = 6.25", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.202, "rationale": "(3,400 - 3,200) / 3,200 * 100 = 6.25 is an indexed change rate."}
{"case_id": "cc-013", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "The unit price is 250 USD and the order covers 40 units.", "answer": "The order total is 10,000 USD.", "focus_value": "10,000", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 250 * 40 = 10000", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.204, "rationale": "250 * 40 = 10,000 is a two-term product."}
{"case_id": "cc-014", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "contradicted", "context": "Headcount at the end of the prior year was 3,200.", "answer": "Headcount at the end of the prior year was 3,250.", "focus_value": "3,250", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context value is 3,200 (relative difference 1.5%)", "nearest_context_value": "3,200", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.155, "rationale": "The context holds 3,200, a 1.5% relative difference, inside the near-miss window."}
{"case_id": "cc-015", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "contradicted", "context": "前年度の従業員数は3,200人でした。", "answer": "前年度の従業員数は3,250人でした。", "focus_value": "3,250人", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context value is 3,200人 (relative difference 1.5%)", "nearest_context_value": "3,200人", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.122, "rationale": "文脈の 3,200人 と近接するが不一致。"}
{"case_id": "cc-016", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "contradicted", "context": "The fine imposed was 340,000 USD.", "answer": "The fine imposed was 3,400,000 USD.", "focus_value": "3,400,000", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context value 340,000 differs by 10^1 (order-of-magnitude error)", "nearest_context_value": "340,000", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.132, "rationale": "Exactly one order of magnitude off the context value."}
{"case_id": "cc-017", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "contradicted", "context": "罰金は340,000ドルであった。", "answer": "罰金は3,400,000ドルであった。", "focus_value": "3,400,000", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context value 340,000ドル differs by 10^1 (order-of-magnitude error)", "nearest_context_value": "340,000ドル", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.112, "rationale": "文脈値のちょうど10倍。桁違いとして検出される。"}
{"case_id": "cc-018", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "contradicted", "context": "Net income for the quarter was 1,500 million yen.", "answer": "Net income for the quarter was -1,500 million yen.", "focus_value": "-1,500", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context states 1,500, the exact negation of this value (sign error)", "nearest_context_value": "1,500", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.143, "rationale": "Same magnitude, opposite sign."}
{"case_id": "cc-019", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "hallucinated", "context": "Acme reported revenue of 12,000 million and operating profit of 1,800 million.", "answer": "The churn rate reached 7.2% this quarter.", "focus_value": "7.2%", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "1,800", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.241, "rationale": "Nothing in the context relates to churn and no context value is near 7.2."}
{"case_id": "cc-020", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "hallucinated", "context": "2024年度の売上高は12,000百万円、営業利益は1,800百万円でした。", "answer": "なお解約率は7.2%に達しています。", "focus_value": "7.2%", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "1,800", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.23, "rationale": "解約率に関する記述は文脈に一切存在しない。"}
{"case_id": "cc-021", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "hallucinated", "context": "The report covers three regional offices.", "answer": "The company operates 847 retail locations worldwide.", "focus_value": "847", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.135, "rationale": "A fabricated specific with no counterpart in the context."}
{"case_id": "cc-022", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "Annual recurring revenue reached 1,200 thousand USD.", "answer": "Annual recurring revenue reached roughly 1,250 thousand USD.", "focus_value": "1,250", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "closest context value is 1,200 (relative difference 4.0%)", "nearest_context_value": "1,200", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.152, "rationale": "A human would accept 1,250 as a rounded restatement, but 4% off is inside the default near-miss window. Raise numeric_tolerance rather than lowering contradiction_rel."}
{"case_id": "cc-023", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "売上高は12,345百万円でした。", "answer": "売上高はおよそ12,000百万円規模でした。", "focus_value": "12,000", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "closest context value is 12,345 (relative difference 2.8%)", "nearest_context_value": "12,345", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.115, "rationale": "人間は丸めた言い換えとして許容するが、相対差 2.8% は近接不一致の窓に入る。"}
{"case_id": "cc-024", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "The context lists the values 2, 3 and 6 in an unrelated table.", "answer": "The combined figure is 6.", "focus_value": "6", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "false_positive", "evidence": "context literal: 6", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.146, "rationale": "Literally present, but also coincidentally derivable as 2*3. Coincidental derivation is why the formula is always shown as evidence."}
{"case_id": "cc-025", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "edge_case", "context": "The margin improved to 3.5% this year.", "answer": "The margin improved by 3.5 points this year.", "focus_value": "3.5", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 3.5%", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.202, "rationale": "Value matches but the unit meaning differs (percent vs percentage points). Semantic unit errors are invisible to this tool."}
{"case_id": "cc-026", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "edge_case", "context": "Steps: prepare the environment, then run the migration.", "answer": "1. Prepare the environment\n2. Run the migration", "focus_value": "2", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 2, "latency_ms": 0.152, "rationale": "List markers at a line start are excluded from extraction, so no NUMERIC claim is produced for this token at all."}
{"case_id": "cc-027", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "edge_case", "context": "The team has four members and two open roles.", "answer": "The team has 5 members.", "focus_value": "5", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.142, "rationale": "Bare integers 0-10 with no unit are never marked contradicted: they sit near everything and produced only noise."}
{"case_id": "cc-028", "source": "authored", "language": "en", "claim_type": "DATE", "category": "grounded", "context": "Product X shipped on 2024-03-15 following a six-month delay.", "answer": "Product X shipped on 2024-03-15.", "focus_value": "2024-03-15", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-03-15", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.137, "rationale": "Identical ISO date."}
{"case_id": "cc-029", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "grounded", "context": "新製品Xは2024年3月15日に発売されました。", "answer": "新製品Xは2024年3月15日に発売されています。", "focus_value": "2024年3月15日", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-03-15", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.124, "rationale": "和暦表記でない年月日をISOに正規化して一致。"}
{"case_id": "cc-030", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "grounded", "context": "契約の発効日は令和6年1月5日である。", "answer": "契約は2024-01-05に発効しました。", "focus_value": "2024-01-05", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-01-05", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.105, "rationale": "令和6年 は 2024 に正規化されるため一致する。"}
{"case_id": "cc-031", "source": "authored", "language": "en", "claim_type": "DATE", "category": "grounded", "context": "The amendment takes effect on January 5, 2024.", "answer": "The amendment takes effect on 5 January 2024.", "focus_value": "5 January 2024", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-01-05", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.13, "rationale": "Month-day-year and day-month-year both normalise to 2024-01-05."}
{"case_id": "cc-032", "source": "authored", "language": "en", "claim_type": "DATE", "category": "grounded", "context": "The filing deadline is 2024/3/1 for all applicants.", "answer": "The filing deadline is 2024-03-01.", "focus_value": "2024-03-01", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-03-01", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.116, "rationale": "Separator differences are absorbed by normalisation."}
{"case_id": "cc-033", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "grounded", "context": "平成31年4月30日をもって制度は終了した。", "answer": "制度は1989年ではなく2019-04-30に終了しました。", "focus_value": "2019-04-30", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2019-04-30", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.139, "rationale": "平成31年 は 2019 に正規化される。"}
{"case_id": "cc-034", "source": "authored", "language": "en", "claim_type": "DATE", "category": "approximate", "context": "The incident occurred in January 2024.", "answer": "The incident occurred on 2024-01-15.", "focus_value": "2024-01-15", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context only states 2024-01; the answer adds precision (2024-01-15)", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.107, "rationale": "The answer is finer-grained than the source: the model added a day the context never stated."}
{"case_id": "cc-035", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "approximate", "context": "障害は2024年1月に発生した。", "answer": "障害は2024年1月15日に発生しました。", "focus_value": "2024年1月15日", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context only states 2024-01; the answer adds precision (2024-01-15)", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.09, "rationale": "文脈より詳細な日付。モデルが粒度を補完した可能性がある。"}
{"case_id": "cc-036", "source": "authored", "language": "en", "claim_type": "DATE", "category": "contradicted", "context": "The board approved the merger on 2024-03-15.", "answer": "The board approved the merger on 2024-03-18.", "focus_value": "2024-03-18", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a near but different date: 2024-03-15", "nearest_context_value": "2024-03-15", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.136, "rationale": "Same year and month, different day."}
{"case_id": "cc-037", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "contradicted", "context": "取締役会は2024年3月15日に承認した。", "answer": "取締役会は2024年5月15日に承認しました。", "focus_value": "2024年5月15日", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a near but different date: 2024-03", "nearest_context_value": "2024-03", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.119, "rationale": "年は一致するが月が異なる。"}
{"case_id": "cc-038", "source": "authored", "language": "en", "claim_type": "DATE", "category": "hallucinated", "context": "The policy document describes the escalation procedure in detail.", "answer": "The policy was ratified on 2019-11-04.", "focus_value": "2019-11-04", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.13, "rationale": "The context contains no date at all."}
{"case_id": "cc-039", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "hallucinated", "context": "本規程はエスカレーション手順を定めるものである。", "answer": "本規程は2019年11月4日に制定されました。", "focus_value": "2019年11月4日", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.113, "rationale": "文脈に日付が存在しない。"}
{"case_id": "cc-040", "source": "authored", "language": "en", "claim_type": "DATE", "category": "known_false_positive", "context": "Revenue for FY2024 reached a record high.", "answer": "Revenue for 2024 reached a record high.", "focus_value": "2024", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "false_positive", "evidence": "matches a year stated in the context (2024)", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.118, "rationale": "FY2024 and calendar 2024 are treated as the same year. Depending on the company's fiscal calendar they are not the same period."}
{"case_id": "cc-041", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "known_false_positive", "context": "2024年度の業績は過去最高となった。", "answer": "2024年の業績は過去最高となりました。", "focus_value": "2024年", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "false_positive", "evidence": "context date: 2024", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.093, "rationale": "年度と暦年を同一視する。開始月が異なる企業では誤り。"}
{"case_id": "cc-042", "source": "authored", "language": "en", "claim_type": "DATE", "category": "edge_case", "context": "The audit was completed on 2024-03-15.", "answer": "The audit was completed last year.", "focus_value": "last year", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.095, "rationale": "Relative dates never become claims: they cannot be resolved without a generation date."}
{"case_id": "cc-043", "source": "authored", "language": "ja", "claim_type": "DATE", "category": "edge_case", "context": "監査は2024年3月15日に完了した。", "answer": "監査は昨年完了しました。", "focus_value": "昨年", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.076, "rationale": "相対表現は claim にならない。counts.relative_date_mentions に計上されるのみ。"}
{"case_id": "cc-044", "source": "authored", "language": "en", "claim_type": "QUOTE", "category": "grounded", "context": "The report: revenue grew by twelve percent in 2024 across all segments.", "answer": "The report states that \"revenue grew by twelve percent in 2024\"", "focus_value": "revenue grew by twelve percent in 2024", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "exact (normalised) substring of the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.162, "rationale": "The quoted span is an exact normalised substring of the context."}
{"case_id": "cc-045", "source": "authored", "language": "ja", "claim_type": "QUOTE", "category": "grounded", "context": "報告書: 当社は2024年に新製品を投入する。", "answer": "報告書には「当社は2024年に新製品を投入する」と記載されています。", "focus_value": "当社は2024年に新製品を投入する", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "exact (normalised) substring of the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.126, "rationale": "正規化後の完全一致。"}
{"case_id": "cc-046", "source": "authored", "language": "ja", "claim_type": "QUOTE", "category": "paraphrase", "context": "報告書: 当社は2024年に新製品を投入する。", "answer": "報告書には「2024年に新製品を投入します」と記載されています。", "focus_value": "2024年に新製品を投入します", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.93): 2024年に新製品を投入す", "nearest_context_value": null, "similarity": 0.9286, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.169, "rationale": "敬体への言い換え。意味は保たれているが引用としては不正確なので approximate。"}
{"case_id": "cc-047", "source": "authored", "language": "en", "claim_type": "QUOTE", "category": "paraphrase", "context": "The memo: all contractors must complete the security training before access is granted.", "answer": "The memo says that \"all contractors must complete security training before access is granted\"", "focus_value": "all contractors must complete security training before access is granted", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.97): all contractors must complete the security training before access is granted.", "nearest_context_value": null, "similarity": 0.9664, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.401, "rationale": "One word dropped; high similarity but not an exact quote."}
{"case_id": "cc-048", "source": "authored", "language": "en", "claim_type": "QUOTE", "category": "contradicted", "context": "The report: revenue grew by twelve percent in 2024.", "answer": "The report states that \"revenue declined by twelve percent last year\"", "focus_value": "revenue declined by twelve percent last year", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar but materially different passage exists (similarity 0.70): revenue grew by twelve percent in 2024.", "nearest_context_value": "revenue grew by twelve percent in 2024.", "similarity": 0.6988, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.388, "rationale": "A passage this similar exists but says the opposite: grew versus declined."}
{"case_id": "cc-049", "source": "authored", "language": "ja", "claim_type": "QUOTE", "category": "known_false_negative", "context": "議事録: 提案は全会一致で承認された。", "answer": "議事録には「提案は全会一致で否決された」と記載されています。", "focus_value": "提案は全会一致で否決された", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "false_negative", "evidence": "closest context passage (similarity 0.85): 提案は全会一致で承認された", "nearest_context_value": null, "similarity": 0.8462, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.139, "rationale": "承認 -> 否決 は1文字の違いで類似度0.92となり approximate に落ちる。文字類似度では日本語の意味反転を検出できない。本ツールの最も重要な限界。"}
{"case_id": "cc-050", "source": "authored", "language": "en", "claim_type": "QUOTE", "category": "hallucinated", "context": "The report: revenue grew by twelve percent in 2024.", "answer": "The report states that \"the moon is made of cheese entirely\"", "focus_value": "the moon is made of cheese entirely", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.157, "rationale": "No similar passage exists anywhere in the context."}
{"case_id": "cc-051", "source": "authored", "language": "ja", "claim_type": "QUOTE", "category": "hallucinated", "context": "報告書: 当社は2024年に新製品を投入する。", "answer": "報告書には「火星に支社を設立する」と記載されています。", "focus_value": "火星に支社を設立する", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.129, "rationale": "類似する記述が文脈に存在しない。"}
{"case_id": "cc-052", "source": "authored", "language": "en", "claim_type": "QUOTE", "category": "known_false_positive", "context": "The guidance: employees should submit expenses within thirty days of travel.", "answer": "The guidance states that \"staff must file expenses within 30 days of travelling\"", "focus_value": "staff must file expenses within 30 days of travelling", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "a similar but materially different passage exists (similarity 0.66): ould submit expenses within thirty days of travel.", "nearest_context_value": "ould submit expenses within thirty days of travel.", "similarity": 0.6602, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.335, "rationale": "A faithful meaning-preserving paraphrase that rewrites most words. Similarity falls below the approximate threshold, so a correct answer is penalised."}
{"case_id": "cc-053", "source": "authored", "language": "ja", "claim_type": "QUOTE", "category": "known_false_positive", "context": "規程: 従業員は出張後30日以内に経費を精算しなければならない。", "answer": "規程には「社員は出張から1か月以内に経費精算を行う必要がある」と記載されています。", "focus_value": "社員は出張から1か月以内に経費精算を行う必要がある", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.193, "rationale": "意味は同じだが語をほぼ入れ替えた言い換え。類似度が閾値に届かず偽陽性になる。"}
{"case_id": "cc-054", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "grounded", "context": "The contract renews automatically under Article 12 unless terminated.", "answer": "The contract renews automatically under Article 12.", "focus_value": "Article 12", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "appears verbatim in the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.188, "rationale": "The identifier appears verbatim."}
{"case_id": "cc-055", "source": "authored", "language": "ja", "claim_type": "ENTITY", "category": "grounded", "context": "契約は第12条に基づき自動更新される。", "answer": "契約は第12条に基づき自動更新されます。", "focus_value": "第12条", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "appears verbatim in the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.103, "rationale": "条番号が文脈に literal に存在する。"}
{"case_id": "cc-056", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "contradicted", "context": "The contract renews automatically under Article 12.", "answer": "The contract renews automatically under Article 15.", "focus_value": "Article 15", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: article 12", "nearest_context_value": "article 12", "similarity": 0.9, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.177, "rationale": "Identifiers are exact-or-wrong: a one-digit-off article number is the dangerous fabrication, not an approximation."}
{"case_id": "cc-057", "source": "authored", "language": "ja", "claim_type": "ENTITY", "category": "contradicted", "context": "契約は第12条に基づき自動更新される。", "answer": "契約は第13条に基づき自動更新されます。", "focus_value": "第13条", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: 第12条", "nearest_context_value": "第12条", "similarity": 0.75, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.144, "rationale": "1桁違いの条番号。識別子は一致か誤りかしかない。"}
{"case_id": "cc-058", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "contradicted", "context": "The approved hardware for this deployment is model XR-400.", "answer": "The approved hardware for this deployment is model XR-500.", "focus_value": "XR-500", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: xr-400", "nearest_context_value": "xr-400", "similarity": 0.8333, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.192, "rationale": "A model number one digit off the one in the source."}
{"case_id": "cc-059", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "hallucinated", "context": "The vendor assessment covered pricing, support and roadmap.", "answer": "The assessment was carried out by Meridian Analytics Group.", "focus_value": "Meridian Analytics Group", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.161, "rationale": "A fabricated organisation name absent from the context."}
{"case_id": "cc-060", "source": "authored", "language": "ja", "claim_type": "ENTITY", "category": "grounded", "context": "当社は ISO 9001 認証を取得しています。", "answer": "当社は ISO 9001 に準拠しています。", "focus_value": "ISO 9001", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "appears verbatim in the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.104, "rationale": "規格番号が完全一致。"}
{"case_id": "cc-061", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "known_false_positive", "context": "The pipeline uses a gradient boosting classifier trained on historical tickets.", "answer": "The pipeline applies Machine Learning to historical tickets.", "focus_value": "Machine Learning", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.161, "rationale": "A generic noun phrase, not a hallucinated fact. ENTITY is the noisiest check and should be disabled first."}
{"case_id": "cc-062", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "known_false_positive", "context": "Guidance was issued by the World Health Organization in March.", "answer": "Guidance was issued by the WHO in March.", "focus_value": "WHO", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.109, "rationale": "'who' is on the stopword list, so no ENTITY claim is created. The suppression list already prevents this false positive - acronym expansion is still unhandled, but it costs a miss rather than a false alarm."}
{"case_id": "cc-063", "source": "authored", "language": "en", "claim_type": "ENTITY", "category": "known_false_positive", "context": "The facility is certified to ISO 9001.", "answer": "The facility is certified to ISO 9001:2015.", "focus_value": "ISO 9001:2015", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "a similar identifier exists in the context: iso 9001.", "nearest_context_value": "iso 9001.", "similarity": 0.7273, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.152, "rationale": "A legitimate standard-version variant is treated as a near-miss identifier. The cost of catching one-digit-off fabrications."}
{"case_id": "cc-064", "source": "authored", "language": "en", "claim_type": "URL", "category": "grounded", "context": "Full results are published at https://example.com/ir/2024 for download.", "answer": "Full results are at https://example.com/ir/2024", "focus_value": "https://example.com/ir/2024", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context URL: https://example.com/ir/2024", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.187, "rationale": "The URL matches exactly after normalisation."}
{"case_id": "cc-065", "source": "authored", "language": "ja", "claim_type": "URL", "category": "grounded", "context": "IR資料は https://example.com/ir/2024 に掲載しています。", "answer": "詳細は https://example.com/ir/2024 をご覧ください。", "focus_value": "https://example.com/ir/2024", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context URL: https://example.com/ir/2024", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.132, "rationale": "URL が完全一致。"}
{"case_id": "cc-066", "source": "authored", "language": "en", "claim_type": "URL", "category": "contradicted", "context": "Full results are published at https://example.com/ir/2024", "answer": "Full results are at https://example.com/ir/2025", "focus_value": "https://example.com/ir/2025", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "host example.com appears in the context but this exact path does not (possible fabricated link)", "nearest_context_value": "example.com", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.144, "rationale": "The host appears in the context but this exact path does not: the classic fabricated citation."}
{"case_id": "cc-067", "source": "authored", "language": "ja", "claim_type": "URL", "category": "contradicted", "context": "IR資料は https://example.com/ir/2024 に掲載しています。", "answer": "詳細は https://example.com/ir/2025 をご覧ください。", "focus_value": "https://example.com/ir/2025", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "host example.com appears in the context but this exact path does not (possible fabricated link)", "nearest_context_value": "example.com", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.145, "rationale": "ホストは一致、パスが捏造されている。"}
{"case_id": "cc-068", "source": "authored", "language": "en", "claim_type": "URL", "category": "hallucinated", "context": "Full results are published at https://example.com/ir/2024", "answer": "See also https://totally-invented-source.org/report for background.", "focus_value": "https://totally-invented-source.org/report", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.163, "rationale": "An entirely invented domain with no counterpart in the context."}
{"case_id": "cc-069", "source": "authored", "language": "en", "claim_type": "URL", "category": "approximate", "context": "Documentation lives at https://example.com/docs/v2/getting-started", "answer": "Documentation lives at https://example.com/docs/v2", "focus_value": "https://example.com/docs/v2", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a related URL: https://example.com/docs/v2/getting-started", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.126, "rationale": "A path prefix of a context URL: related, but not the cited page."}
{"case_id": "cc-070", "source": "authored", "language": "en", "claim_type": "URL", "category": "known_false_positive", "context": "Full results are published at https://example.com/ir/2024", "answer": "Full results are at https://example.com/ir/2024?utm_source=newsletter", "focus_value": "https://example.com/ir/2024?utm_source=newsletter", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "false_positive", "evidence": "context has a related URL: https://example.com/ir/2024", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.138, "rationale": "A tracking parameter makes an otherwise identical link fail exact matching."}
{"case_id": "cc-071", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "coverage", "context": "Acme reported revenue of 12,000 million for fiscal 2024.", "answer": "Please contact the relevant department for further details. We appreciate your understanding.", "focus_value": "", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.163, "rationale": "Zero claims extracted, so coverage is 0.0. grounding_score is meaningless here: this is the case that proves why coverage must always be read alongside it."}
{"case_id": "cc-072", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "coverage", "context": "2024年度の売上高は12,000百万円でした。", "answer": "詳細は担当部署にお問い合わせください。ご検討のほどよろしくお願いいたします。", "focus_value": "", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 2, "latency_ms": 0.119, "rationale": "抽出できる主張がゼロなので coverage は 0.0。grounding_score だけを見ると「検証済み」と誤読される典型例。"}
{"case_id": "cc-073", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "adversarial", "context": "Acme reported revenue of 12,000 million and operating profit of 1,800 million for fiscal 2024.", "answer": "Acme reported revenue of 12,000 million for fiscal 2024. The company also opened 34 new offices that year.", "focus_value": "34", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "1,800", "similarity": null, "verdict": "retry", "grounding_score": 0.6667, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.597, "rationale": "One well-grounded sentence carrying a fabricated specific alongside it: the mixed answer is the realistic failure mode."}
{"case_id": "cc-074", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "adversarial", "context": "2024年度の売上高は12,000百万円、営業利益は1,800百万円でした。", "answer": "2024年度の売上高は12,000百万円でした。また同年に34拠点を新設しました。", "focus_value": "34拠点", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "1,800", "similarity": null, "verdict": "retry", "grounding_score": 0.6667, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.267, "rationale": "正しい文と捏造された具体値が同居する、実運用で最もよくある形。"}
{"case_id": "cc-075", "source": "authored", "language": "en", "claim_type": "NUMERIC", "category": "adversarial", "context": "The survey covered 1,200 respondents across four countries.", "answer": "The survey, which reached 1,200 respondents, found that 68% favoured the proposal.", "focus_value": "68%", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "1,200", "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.187, "rationale": "A fabricated figure buried inside an otherwise faithful restatement."}
{"case_id": "cc-076", "source": "authored", "language": "ja", "claim_type": "NUMERIC", "category": "adversarial", "context": "調査は4カ国の1,200名を対象に実施された。", "answer": "1,200名を対象とした調査の結果、68%が提案に賛成しました。", "focus_value": "68%", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "4", "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.229, "rationale": "忠実な言い換えの中に捏造値が埋め込まれている。"}
{"case_id": "cc-077", "source": "authored", "language": "en", "claim_type": "DATE", "category": "adversarial", "context": "The outage began at 03:00 UTC and was resolved within two hours.", "answer": "The outage began recently and was resolved quickly.", "focus_value": "recently", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.132, "rationale": "An answer that is vague where the context was specific: nothing to verify, and coverage drops accordingly."}
{"case_id": "cc-078", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "grounded", "context": "Acme Corp's Q3 filing states: \"We expect cloud revenue to grow at a double-digit rate through fiscal 2027.\"", "answer": "According to the filing, Acme Corp said, \"We expect cloud revenue to grow at a double-digit rate through fiscal 2027.\"", "focus_value": "We expect cloud revenue to grow at a double-digit rate through fiscal 2027.", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "exact (normalised) substring of the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.237, "rationale": "The quoted sentence is reproduced verbatim from the context, so the quote claim matches literally."}
{"case_id": "cc-079", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "paraphrase", "context": "The post-incident review states: \"The outage was caused by a misconfigured load balancer in the eu-west-1 region.\"", "answer": "The review states that \"the outage was caused by a misconfigured load balancer in the eu-west-1 region of our platform.\"", "focus_value": "the outage was caused by a misconfigured load balancer in the eu-west-1 region of our platform", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.90): the outage was caused by a misconfigured load balancer in the eu-west-1 region.\"", "nearest_context_value": null, "similarity": 0.9029, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.314, "rationale": "The wording tracks the source closely (well above 0.82 similarity) but adds a trailing qualifier, so it is a near match rather than a literal one."}
{"case_id": "cc-080", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "contradicted", "context": "Acme Corp's press release reads: \"Subscription revenue grew 8% year over year in the second quarter.\"", "answer": "The press release says \"Subscription revenue declined 8% year over year in the second quarter.\"", "focus_value": "Subscription revenue declined 8% year over year in the second quarter.", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "false_negative", "evidence": "closest context passage (similarity 0.92): subscription revenue grew 8% year over year in the second quarter.\"", "nearest_context_value": null, "similarity": 0.9197, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.308, "rationale": "grew -> declined is a semantic reversal, but character similarity is 0.97 so the quote reads as a paraphrase. The answer is still flagged (verdict=retry) because approximate does not count as grounded."}
{"case_id": "cc-081", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "hallucinated", "context": "Acme Corp announced a partnership with Zenith Logistics to expand same-day delivery to three additional metro areas. The announcement gives no financial terms and includes no executive commentary.", "answer": "Acme's chief executive said, \"This partnership will double our delivery volume by next summer.\"", "focus_value": "This partnership will double our delivery volume by next summer.", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": 0.4219, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.544, "rationale": "The context contains no executive statement at all, so the attributed quote has nothing close to match against."}
{"case_id": "cc-082", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "known_false_positive", "context": "The security bulletin states: \"Customers running version 4.2 or earlier should upgrade immediately.\"", "answer": "The bulletin states that \"anyone still on release 4.2 or older must update without delay.\"", "focus_value": "anyone still on release 4.2 or older must update without delay", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.216, "rationale": "A faithful paraphrase rewritten word for word falls below the similarity threshold."}
{"case_id": "cc-083", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "coverage", "context": "The vendor's service agreement guarantees 99.9% uptime each calendar month and provides service credits for any month that falls short of that level.", "answer": "According to the agreement, \"service credits apply in any calendar month that falls below 99.9% uptime.\"", "focus_value": "service credits apply in any calendar month that falls below 99.9% uptime", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.6074, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.956, "rationale": "A faithful restatement scoring 0.61: below the approximate threshold, so a correct answer is flagged."}
{"case_id": "cc-084", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "coverage", "context": "The internal memo closes with a line from the CFO: “Cost discipline remains our top priority for the rest of the year.”", "answer": "The memo quotes the CFO as saying \"Cost discipline remains our top priority for the rest of the year.\"", "focus_value": "Cost discipline remains our top priority for the rest of the year.", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "exact (normalised) substring of the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.219, "rationale": "Only the quotation-mark style differs (curly versus straight); after normalisation the string is identical to the context."}
{"case_id": "cc-085", "source": "generated", "language": "en", "claim_type": "QUOTE", "category": "contradicted", "context": "The earnings call transcript records the COO saying: \"We opened 12 new distribution centres in 2025.\"", "answer": "The transcript records the COO saying \"We opened 21 new distribution centres in 2025.\"", "focus_value": "We opened 21 new distribution centres in 2025.", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.98): we opened 12 new distribution centres in 2025.", "nearest_context_value": null, "similarity": 0.9783, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 4, "sentences_unverified": 0, "latency_ms": 0.413, "rationale": "The quote status understates it, but the NUMERIC claim 21 inside the quote is unsupported, so the layered design still flags the answer. Read the claims inside a quote, not only the quote status."}
{"case_id": "cc-086", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "grounded", "context": "架空商事の統合報告書には「2027年までに国内の全拠点を再生可能エネルギーに切り替える」と記載されている。", "answer": "統合報告書には「2027年までに国内の全拠点を再生可能エネルギーに切り替える」と記載されている。", "focus_value": "2027年までに国内の全拠点を再生可能エネルギーに切り替える", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "exact (normalised) substring of the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.177, "rationale": "The bracketed quote is character-for-character identical to the quoted span in the context."}
{"case_id": "cc-087", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "paraphrase", "context": "記者会見で架空商事の広報担当は「現時点で追加の人員削減は計画していない」と述べた。", "answer": "会見によると、広報担当は「現時点では追加の人員削減を計画していない」と述べた。", "focus_value": "現時点では追加の人員削減を計画していない", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.90): \"現時点で追加の人員削減は計画していない", "nearest_context_value": null, "similarity": 0.9, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.178, "rationale": "Only the particles differ (で/では, は/を); the similarity is far above 0.82 but the string is not literal, so it is a near match."}
{"case_id": "cc-088", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "contradicted", "context": "四半期報告書には「国内売上高は前年同期比で7%増加した」と記載されている。", "answer": "報告書によると「国内売上高は前年同期比で7%減少した」とされている。", "focus_value": "国内売上高は前年同期比で7%減少した", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "false_negative", "evidence": "closest context passage (similarity 0.89): 国内売上高は前年同期比で7%増加した", "nearest_context_value": null, "similarity": 0.8889, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.173, "rationale": "増加 -> 減少 differs by one character, so similarity stays high and the reversal is not called contradicted. The single most important limitation of character-level matching on Japanese."}
{"case_id": "cc-089", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "hallucinated", "context": "架空商事は、物流子会社の株式60%を投資ファンドに売却すると発表した。売却額および経営陣のコメントは公表していない。", "answer": "同社の社長は「今回の売却で財務体質は劇的に改善する」と述べた。", "focus_value": "今回の売却で財務体質は劇的に改善する", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.171, "rationale": "The context explicitly says no executive comment was released, so the attributed remark has no counterpart to compare with."}
{"case_id": "cc-090", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "known_false_positive", "context": "利用規約には「本サービスの障害によって生じた間接損害について当社は責任を負いません」と定められている。", "answer": "利用規約には「サービス障害に起因する間接的な損害について当社は一切の賠償責任を負わない」と記載されている。", "focus_value": "サービス障害に起因する間接的な損害について当社は一切の賠償責任を負わない", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.182, "rationale": "意味を保った法務的な言い換えだが、語をほぼ入れ替えているため閾値に届かない。"}
{"case_id": "cc-091", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "coverage", "context": "架空総研の調査では、2025年度の国内データセンター向け電力需要は前年度比で約12%増えたとされる。", "answer": "調査によると「データセンター向けの電力需要は前年度から約12%伸びた」という。", "focus_value": "データセンター向けの電力需要は前年度から約12%伸びた", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "a similar but materially different passage exists (similarity 0.81): データセンター向け電力需要は前年度比で約12%増えたと", "nearest_context_value": "データセンター向け電力需要は前年度比で約12%増えたと", "similarity": 0.8148, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.238, "rationale": "増えた -> 伸びた は忠実な言い換えだが類似度0.81が approximate 閾値0.82をわずかに下回り、contradicted の帯に落ちる。閾値境界の典型的な偽陽性。"}
{"case_id": "cc-092", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "coverage", "context": "社内通達には“来客対応は原則としてオンライン会議に切り替える”と書かれている。", "answer": "社内通達には「来客対応は原則としてオンライン会議に切り替える」と書かれている。", "focus_value": "来客対応は原則としてオンライン会議に切り替える", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "exact (normalised) substring of the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.133, "rationale": "Only the bracket style differs between the double quotes in the context and 「」 in the answer; the quoted text itself is identical after normalisation."}
{"case_id": "cc-093", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "contradicted", "context": "判決文には「本件は民法第709条に基づく不法行為に当たる」と記されている。", "answer": "判決文には「本件は民法第719条に基づく不法行為に当たる」と記されている。", "focus_value": "本件は民法第719条に基づく不法行為に当たる", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.95): 本件は民法第709条に基づく不法行為に当たる", "nearest_context_value": null, "similarity": 0.9545, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.214, "rationale": "第709条 -> 第719条 は QUOTE では approximate に留まるが、ENTITY 第719条 が contradicted を返すため 多層で捕捉できている。"}
{"case_id": "cc-094", "source": "generated", "language": "en", "claim_type": "DATE", "category": "grounded", "context": "Acme Corp will cut over to its new billing platform on 2024-03-18, with a read-only freeze over the preceding weekend. Extended support hours run for the week after the cut-over.", "answer": "The billing platform cut-over is scheduled for 2024-03-18.", "focus_value": "2024-03-18", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-03-18", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.211, "rationale": "The ISO date appears literally in the context with the same value."}
{"case_id": "cc-095", "source": "generated", "language": "en", "claim_type": "DATE", "category": "paraphrase", "context": "The revised supplier agreement with Northwind Freight took effect on 5 January 2024 and runs for an initial term of three years.", "answer": "The revised supplier agreement took effect on 2024-01-05.", "focus_value": "2024-01-05", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-01-05", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.176, "rationale": "Normalisation of the day-first English month-name form '5 January 2024' yields exactly 2024-01-05."}
{"case_id": "cc-096", "source": "generated", "language": "en", "claim_type": "DATE", "category": "coverage", "context": "Changelog\n1. Gateway v2.1 was rolled out to all regions on 2024.07.01.\n2. Legacy v1 endpoints were retired two weeks later.", "answer": "Gateway v2.1 reached all regions on 2024-07-01.", "focus_value": "2024-07-01", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-07-01", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.175, "rationale": "The dot-separated date normalises to the same ISO date, and the leading '1.' is a list marker rather than a competing numeric claim."}
{"case_id": "cc-097", "source": "generated", "language": "en", "claim_type": "DATE", "category": "contradicted", "context": "Acme Corp filed its prospectus on Jan 5, 2024, about three weeks before the investor roadshow began.", "answer": "The prospectus was filed on January 6, 2024.", "focus_value": "January 6, 2024", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a near but different date: 2024-01-05", "nearest_context_value": "2024-01-05", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.167, "rationale": "The context date shares the year and month but differs by one day, which is the near-but-different date case."}
{"case_id": "cc-098", "source": "generated", "language": "en", "claim_type": "DATE", "category": "coverage", "context": "Field trials of the Acme sensor array ran in April 2024 across four distribution sites, and the summary report was published later that year.", "answer": "The field trials took place on 2024-04-15 across four sites.", "focus_value": "2024-04-15", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context only states 2024-04; the answer adds precision (2024-04-15)", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.182, "rationale": "The answer is finer-grained than the context, which gives only the year and month, so the day is a near match rather than a contradiction."}
{"case_id": "cc-099", "source": "generated", "language": "en", "claim_type": "DATE", "category": "known_false_positive", "context": "Acme Corp's FY2024 runs from 1 April 2024 to 31 March 2025. Revenue for FY2024 rose 8% to 48.2 billion yen.", "answer": "Acme Corp's revenue grew 8% in 2024.", "focus_value": "2024", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "false_positive", "evidence": "matches a year stated in the context (2024)", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.287, "rationale": "ClaimCheck deliberately treats FY2024 and 2024 as the same year, so this passes as supported even though a quarter of the fiscal period falls in calendar 2025."}
{"case_id": "cc-100", "source": "generated", "language": "en", "claim_type": "DATE", "category": "hallucinated", "context": "Acme Corp announced a partnership with Northwind Freight to pilot autonomous yard trucks at two distribution centres. Financial terms were not disclosed.", "answer": "The pilot is set to begin on 2024-09-02.", "focus_value": "2024-09-02", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.181, "rationale": "The context contains no date at all, so nothing in it backs or comes close to this one."}
{"case_id": "cc-101", "source": "generated", "language": "en", "claim_type": "DATE", "category": "derived", "context": "Acme Corp was founded in 1998 and recently celebrated its 25th anniversary with a keynote at its Portland campus.", "answer": "The anniversary keynote was held in 2023.", "focus_value": "2023", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 1998 + 25 = 2023", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.236, "rationale": "1998 + 25 = 2023, a two-term calculation over context values, and 'recently' is a relative date that is never itself claimed."}
{"case_id": "cc-102", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "grounded", "context": "架空商事は2024年度第1四半期の決算を2024年6月12日に発表した。営業利益は前年同期を上回った。", "answer": "架空商事の2024年度第1四半期決算の発表日は2024年6月12日である。", "focus_value": "2024年6月12日", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-06-12", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.254, "rationale": "和暦表記を挟まない年月日がコンテキストにそのまま同じ値で出現している。"}
{"case_id": "cc-103", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "paraphrase", "context": "架空商事の新購買規程は令和6年4月1日に施行された。適用対象は国内の全拠点である。", "answer": "架空商事の新購買規程は2024年4月1日に施行された。", "focus_value": "2024年4月1日", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2024-04-01", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.129, "rationale": "令和6年は正規化で2024年に変換されるため、月日も含めて完全一致となる。"}
{"case_id": "cc-104", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "coverage", "context": "架空商事のサポート窓口の移転は2025/01/09に完了した。旧番号は同日以降つながらない。", "answer": "サポート窓口の移転は2025年1月9日に完了した。", "focus_value": "2025年1月9日", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context date: 2025-01-09", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.126, "rationale": "スラッシュ区切りの日付と日本語の年月日表記は正規化後に同一の値になる。"}
{"case_id": "cc-105", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "contradicted", "context": "架空商事の新料金プランは2025年4月1日に提供を開始する。既存契約は同年9月末まで現行料金が維持される。", "answer": "新料金プランの提供開始は2025年5月1日である。", "focus_value": "2025年5月1日", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a near but different date: 2025-04", "nearest_context_value": "2025-04", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.158, "rationale": "年は一致するが月が1か月ずれており、近いが異なる日付にあたる。"}
{"case_id": "cc-106", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "contradicted", "context": "架空鉄道の旧ダイヤは平成31年3月16日に改正され、その後は大きな変更がなかった。", "answer": "旧ダイヤの改正日は2019年3月17日である。", "focus_value": "2019年3月17日", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a near but different date: 2019-03-16", "nearest_context_value": "2019-03-16", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.139, "rationale": "平成31年3月16日は正規化すると2019年3月16日であり、年月が同じで日だけが1日ずれている。"}
{"case_id": "cc-107", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "coverage", "context": "架空商事は2024年1月に次世代POS端末を発表し、同年秋から出荷を始めた。", "answer": "次世代POS端末は2024年1月15日に発表された。", "focus_value": "2024年1月15日", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context only states 2024-01; the answer adds precision (2024-01-15)", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.117, "rationale": "コンテキストは年月までしか示しておらず、回答はそれより細かい粒度なので近接一致にとどまる。"}
{"case_id": "cc-108", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "hallucinated", "context": "架空商事は物流子会社の設立を検討していると発表した。出資比率や設立時期は明らかにしていない。", "answer": "物流子会社は2026年4月1日に設立される予定だ。", "focus_value": "2026年4月1日", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.137, "rationale": "コンテキストに日付が一切なく、近い値も存在しないため裏づけがない。"}
{"case_id": "cc-109", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "derived", "context": "架空商事は昭和48年に創業した。同社は創業50周年を記念して新しいコーポレートロゴを発表した。", "answer": "創業50周年にあたる2023年に新ロゴが発表された。", "focus_value": "2023年", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.157, "rationale": "昭和48年 + 創業50周年 = 2023 is correct, but derivation is arithmetic over NUMBERS only - date arithmetic is not performed, so a correct answer is flagged. The answer-level verdict is retry."}
{"case_id": "cc-110", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "grounded", "context": "Acme Corp shipped 1,200 units of the Model R sensor in the third quarter, its strongest quarter since launch.", "answer": "Acme Corp shipped 1200 units of the Model R sensor in Q3.", "focus_value": "1200", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1,200", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.227, "rationale": "Thousands separators are stripped during normalisation, so 1200 is a literal match for the context's 1,200."}
{"case_id": "cc-111", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "架空商事のサポート窓口には、今四半期で約1,200件の問い合わせが寄せられた。前四半期からはほぼ横ばいである。", "answer": "架空商事のサポート窓口への問い合わせは、今四半期で1200件だった。", "focus_value": "1200件", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1,200件", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.172, "rationale": "The hedge 約 sits outside the numeric token and the comma is a separator, so both normalise away and 1200件 matches literally."}
{"case_id": "cc-112", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "Acme Corp's FY2024 filing lists revenue of $12.0M and operating profit of $1.8M for the Devices segment.", "answer": "That gives the Devices segment an operating margin of 15% for FY2024.", "focus_value": "15%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: $1.8M / $12.0M * 100 (percentage) = 15", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.324, "rationale": "1.8M / 12.0M * 100 = 15 is a two-term percentage computation over context figures, so the value is derived rather than literal."}
{"case_id": "cc-113", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "derived", "context": "架空商事の売上高は、前期が40億円、今期が52億円と発表された。", "answer": "今期の売上高は前期比で30%の増加となった。", "focus_value": "30%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: (52億円 - 40億円) / 40億円 * 100 (change rate) = 30", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.228, "rationale": "(52億 - 40億) / 40億 * 100 = 30 is a change-rate computation from two context numbers, not a literal value."}
{"case_id": "cc-114", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "The migration budget allocates $420,000 to infrastructure and $180,000 to contractor fees. No other line items are funded this year.", "answer": "The migration budget therefore totals $600,000 for the year.", "focus_value": "$600,000", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: $420,000 + $180,000 = 600000", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.291, "rationale": "420,000 + 180,000 = 600,000 is a two-term sum of context figures, which counts as derivation rather than a literal match."}
{"case_id": "cc-115", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "derived", "context": "架空商事の従業員は2,500人で、そのうち12%が完全リモート勤務を選択している。", "answer": "完全リモート勤務者は300人にあたる。", "focus_value": "300人", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 2,500人 * 12%% (percent of) = 300", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.239, "rationale": "2,500 * 12 / 100 = 300 is a percent-of computation over two context numbers."}
{"case_id": "cc-116", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "contradicted", "context": "The payments platform processed 48.5k transactions during the launch weekend, according to the ops dashboard.", "answer": "The payments platform processed 45,000 transactions over the launch weekend.", "focus_value": "45,000", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context value is 48.5k (relative difference 7.2%)", "nearest_context_value": "48.5k", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.297, "rationale": "48.5k normalises to 48,500, and 45,000 is 7.2% below it — a near but different value inside the 25% contradiction band."}
{"case_id": "cc-117", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "contradicted", "context": "新サービスの登録者数は、公開から3か月で35万人に達した。", "answer": "新サービスの登録者数は、公開から3か月で350万人に達した。", "focus_value": "350万人", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context value 35万人 differs by 10^1 (order-of-magnitude error)", "nearest_context_value": "35万人", "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.28, "rationale": "350万 is exactly ten times the context's 35万, an order-of-magnitude error that the contradiction rule targets."}
{"case_id": "cc-118", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "contradicted", "context": "Acme Corp's H1 segment table shows operating income of (1,200) million yen for the Devices unit; figures in parentheses denote losses.", "answer": "The Devices unit recorded operating income of 1,200 million yen in the first half.", "focus_value": "1,200 million yen", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context states 1,200, the exact negation of this value (sign error)", "nearest_context_value": "1,200", "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.253, "rationale": "Parenthesised accounting notation makes the context value -1,200, so the unsigned answer is a sign flip on the same magnitude."}
{"case_id": "cc-119", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "四半期決算短信によると、当社のデバイス部門の営業利益は▲480百万円だった。", "answer": "デバイス部門の営業利益は-480百万円だった。", "focus_value": "-480百万円", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: ▲480", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.129, "rationale": "The Japanese accounting marker ▲ normalises to a minus sign, so -480 matches the context value exactly."}
{"case_id": "cc-120", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "hallucinated", "context": "Acme Corp's Q2 update covers headcount growth, the regional revenue split and the opening of the Leeds warehouse. Marketing spend is not broken out anywhere in the release.", "answer": "Acme Corp spent $3.7M on advertising in Q2.", "focus_value": "$3.7M", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.222, "rationale": "The context carries no spending figure at all, so there is no literal, derivable or near value to match."}
{"case_id": "cc-121", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "hallucinated", "context": "架空商事は、新工場の稼働を2025年4月に開始すると発表した。発表資料に投資額の記載はない。", "answer": "新工場への投資額は85億円とされている。", "focus_value": "85億円", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.154, "rationale": "No monetary amount appears in the context, so nothing is close enough to be contradicted and the claim is simply unbacked."}
{"case_id": "cc-122", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "Monthly churn for the quarter came in at 3.27%, flat against the prior quarter.", "answer": "Monthly churn was roughly 3.3% for the quarter, essentially flat.", "focus_value": "3.3%", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "closest context value is 3.27% (relative difference 0.9%)", "nearest_context_value": "3.27%", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.189, "rationale": "A human accepts 3.3% as correct rounding, but the hedge is stripped outside the token and 3.3 vs 3.27 is a 0.9% relative difference, which lands inside the contradiction band."}
{"case_id": "cc-123", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "架空商事の2024年度の営業損益は▲1,200百万円で、2期連続の赤字となった。", "answer": "架空商事は2024年度に1,200百万円の営業赤字を計上した。", "focus_value": "1,200百万円", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "false_positive", "evidence": "context states ▲1,200, the exact negation of this value (sign error)", "nearest_context_value": "▲1,200", "similarity": null, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.171, "rationale": "The answer is factually right, but the sign is carried by the word 赤字 rather than the token, so the extractor sees +1,200 against the context's -1,200 and calls it a sign flip."}
{"case_id": "cc-124", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "coverage", "context": "On a single node the simulator sustained 1.2e6 particle interactions per second in the benchmark run.", "answer": "The simulator sustained 1,200,000 particle interactions per second on one node.", "focus_value": "1,200,000", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1.2e6", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.179, "rationale": "Exponent notation normalises to 1,200,000, so the expanded figure is a literal match and this case checks that exponent handling fires."}
{"case_id": "cc-125", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "coverage", "context": "架空商事の令和6年度の会員数は、キャンペーン終了時点で48万人となった。", "answer": "キャンペーン終了時点の会員数は480,000人である。", "focus_value": "480,000人", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 48万人", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.129, "rationale": "The 万 magnitude factor expands 48万 to 480,000, so the plain-digit form is a literal match after normalisation."}
{"case_id": "cc-126", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "grounded", "context": "Acme Robotics Corp opened a second assembly line in Dayton this quarter. The plant will supply drive units to its European partners.", "answer": "Acme Robotics Corp has opened a second assembly line in Dayton.", "focus_value": "Acme Robotics Corp", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "appears verbatim in the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.179, "rationale": "The capitalised multi-word name appears verbatim in the context, so the entity check matches literally."}
{"case_id": "cc-127", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "contradicted", "context": "Support for the XR-500 controller ends in March, and no replacement firmware will be issued after that date.", "answer": "Firmware support for the XR-550 controller ends in March.", "focus_value": "XR-550", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: xr-500", "nearest_context_value": "xr-500", "similarity": 0.8333, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.21, "rationale": "A model number is an identifier, so a one-character-off variant of the context's XR-500 is a near-but-different value, never an approximation."}
{"case_id": "cc-128", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "contradicted", "context": "Article 12 of the services agreement lets either party terminate with sixty days written notice.", "answer": "Either party may terminate under Article 15 with sixty days written notice.", "focus_value": "Article 15", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: article 12", "nearest_context_value": "article 12", "similarity": 0.9, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.215, "rationale": "Article numbers are exact-or-wrong, and the context's highly similar Article 12 makes this a contradiction rather than an unsupported claim."}
{"case_id": "cc-129", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "known_false_positive", "context": "The ranking pipeline is retrained every Sunday night and the refreshed weights ship with Monday's release.", "answer": "Retraining of the Machine Learning pipeline happens every Sunday night.", "focus_value": "Machine Learning", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.188, "rationale": "Known false positive: a generic capitalised noun phrase is extracted as an entity and reported unsupported because neither token appears in the context, even though nothing was fabricated."}
{"case_id": "cc-130", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "known_false_positive", "context": "Meridian Data Alliance published its annual interoperability survey on Tuesday.", "answer": "MDA published its annual interoperability survey on Tuesday.", "focus_value": "MDA", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.6667, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.167, "rationale": "Known false positive: the acronym is a legitimate contraction of the context's spelled-out organisation, but the checker does no acronym expansion, so no token matches and it lands on unsupported."}
{"case_id": "cc-131", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "paraphrase", "context": "Northwind Logistics agreed to buy Pioneer Freight for an undisclosed sum, adding forty depots to its network.", "answer": "Northwind Freight is adding forty depots through the acquisition.", "focus_value": "Northwind Freight", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "all tokens appear in the context but not as this phrase", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.165, "rationale": "Both tokens occur in the context but belong to two different companies, which is exactly the tokens-present-but-not-as-this-phrase case the approximate status covers."}
{"case_id": "cc-132", "source": "generated", "language": "en", "claim_type": "URL", "category": "grounded", "context": "Live incident history is posted at https://status.example.com/incidents/ and updated every five minutes.", "answer": "Incident history is published at https://status.example.com/incidents.", "focus_value": "https://status.example.com/incidents", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context URL: https://status.example.com/incidents/", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.164, "rationale": "URL normalisation strips the trailing slash, so the cited link is identical to the context link after normalisation."}
{"case_id": "cc-133", "source": "generated", "language": "en", "claim_type": "URL", "category": "contradicted", "context": "The survey methodology is described at https://example.org/research/methodology and the raw responses are available on request.", "answer": "The full survey is available at https://example.org/reports/2026/ai-adoption.pdf.", "focus_value": "https://example.org/reports/2026/ai-adoption.pdf", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "host example.org appears in the context but this exact path does not (possible fabricated link)", "nearest_context_value": "example.org", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.271, "rationale": "Classic fabricated citation: the host appears in the context but the path is unrelated and is not a prefix of the real one, which is the host-matches-path-does-not contradiction."}
{"case_id": "cc-134", "source": "generated", "language": "ja", "claim_type": "ENTITY", "category": "grounded", "context": "本業務委託契約第12条により、いずれの当事者も60日前の書面通知で解約できる。解約時の精算方法は別紙に定める。", "answer": "第12条に基づき、60日前の書面通知で解約が可能です。", "focus_value": "第12条", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "appears verbatim in the context", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.159, "rationale": "The article identifier appears character-for-character in the context, so it is literally supported."}
{"case_id": "cc-135", "source": "generated", "language": "ja", "claim_type": "ENTITY", "category": "contradicted", "context": "個人情報保護法第23条は、第三者提供にあたって本人の同意を原則として必要とすると定めている。", "answer": "第三者提供には、第27条により本人の同意が必要です。", "focus_value": "第27条", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: 第23条", "nearest_context_value": "第23条", "similarity": 0.75, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.189, "rationale": "The context carries the near-but-different identifier 第23条, and article numbers are exact-or-wrong, so a one-digit shift is a contradiction."}
{"case_id": "cc-136", "source": "generated", "language": "ja", "claim_type": "ENTITY", "category": "contradicted", "context": "架空商事は、検査装置「HX-2200」の保守受付を来期で終了すると発表した。後継機の発売時期は未定である。", "answer": "架空商事は検査装置「HX-2000」の保守受付を終了します。", "focus_value": "HX-2000", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: hx-2200", "nearest_context_value": "hx-2200", "similarity": 0.8571, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.205, "rationale": "A part number differing by one digit from the context's HX-2200 is a near-but-different identifier, so it is contradicted rather than approximate."}
{"case_id": "cc-137", "source": "generated", "language": "ja", "claim_type": "ENTITY", "category": "known_false_positive", "context": "架空製作所は2019年にISO 9001認証を取得し、以来、全工場で内部監査を継続している。", "answer": "架空製作所はISO 9001:2015認証を維持しています。", "focus_value": "ISO 9001:2015", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "false_positive", "evidence": null, "nearest_context_value": null, "similarity": 0.6667, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.183, "rationale": "Known false positive: the edition suffix is a legitimate variant of the context's ISO 9001, but the extra :2015 token is absent from the context and drops the identifier below the near-match threshold, so the gate reports unsupported."}
{"case_id": "cc-138", "source": "generated", "language": "ja", "claim_type": "ENTITY", "category": "hallucinated", "context": "架空総研は、物流業界の人手不足に関する調査結果を公表した。調査は国内の運送事業者320社を対象としている。", "answer": "この調査は Halcyon Trade Institute が実施しました。", "focus_value": "Halcyon Trade Institute", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": 0.0, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.175, "rationale": "The attributed organisation appears nowhere in the context and no token or near match exists, so the fabricated name is unsupported."}
{"case_id": "cc-139", "source": "generated", "language": "ja", "claim_type": "URL", "category": "hallucinated", "context": "架空リサーチは、中小企業のクラウド利用率に関する調査結果を今月公表した。調査は全国1,200社を対象としている。", "answer": "調査結果は https://kakuu-research.example.net/2026/cloud-survey で公開されています。", "focus_value": "https://kakuu-research.example.net/2026/cloud-survey", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.204, "rationale": "The context contains no URL at all, so the invented domain has neither a matching link nor a matching host and is unsupported rather than contradicted."}
{"case_id": "cc-140", "source": "generated", "language": "ja", "claim_type": "URL", "category": "coverage", "context": "申請書の様式は https://www.example.jp/forms/apply に掲載しており、提出期限は月末です。", "answer": "申請書の様式は https://example.jp/forms/apply。提出期限は月末です。", "focus_value": "https://example.jp/forms/apply", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context URL: https://www.example.jp/forms/apply", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 0.5, "claims_total": 1, "sentences_unverified": 1, "latency_ms": 0.155, "rationale": "Coverage case: the trailing Japanese full stop is excluded from the URL and the www prefix is stripped by normalisation, so the link matches the context link exactly."}
{"case_id": "cc-141", "source": "generated", "language": "ja", "claim_type": "URL", "category": "coverage", "context": "会員向けの価格表は https://www.example.jp/pricing で毎月更新しています。改定は月初に反映されます。", "answer": "価格表は https://example.jp/pricing?utm_source=mail で確認できます。", "focus_value": "https://example.jp/pricing?utm_source=mail", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a related URL: https://www.example.jp/pricing", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.161, "rationale": "A tracking query parameter makes the link a strict extension of the context URL, which is a related-but-not-identical link and therefore approximate, not contradicted."}
{"case_id": "cc-142", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "coverage", "context": "Acme Corp's Q3 support backlog fell from 1,940 open tickets to 1,412, and median resolution time held at 3.2 days.", "answer": "The backlog picture looks meaningfully better, though the gain may not hold once ticket volume picks up again.", "focus_value": "meaningfully better", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.219, "rationale": "Vague prose yields no claim at all; it lowers coverage instead of being scored."}
{"case_id": "cc-143", "source": "generated", "language": "en", "claim_type": "DATE", "category": "coverage", "context": "Acme Corp shipped the v2 billing engine on 2024-11-18 and completed the customer migration on 2025-02-03.", "answer": "They shipped the new billing engine last year and finished moving customers over a few months later.", "focus_value": "last year", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.194, "rationale": "Relative dates never become claims: they cannot be resolved without a generation date."}
{"case_id": "cc-144", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "The cutover runbook has three steps: freeze the schema, redirect read traffic, then promote the new primary.", "answer": "1. Freeze the schema.\n2. Redirect read traffic.\n3. Promote the new primary.", "focus_value": "2.", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 3, "latency_ms": 0.174, "rationale": "List markers at a line start are excluded from numeric extraction."}
{"case_id": "cc-145", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "derived", "context": "For FY2025 Acme Corp reported revenue of 12,000 million yen and operating profit of 1,800 million yen.", "answer": "That works out to an operating margin of 15% for the year.", "focus_value": "15%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 1,800 / 12,000 * 100 (percentage) = 15", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.263, "rationale": "15 is not literal in the context but follows from the two-term percentage 1,800 / 12,000 * 100, which is exactly the derived case."}
{"case_id": "cc-146", "source": "generated", "language": "en", "claim_type": "NUMERIC", "category": "hallucinated", "context": "Acme Corp's support team closed 4,318 tickets in August 2025, with a median first-response time of 3.2 hours.", "answer": "In August the team closed 4,318 tickets and held median first response at 3.2 hours, which pushed customer satisfaction to 95%.", "focus_value": "95%", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "3.2", "similarity": null, "verdict": "retry", "grounding_score": 0.6667, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.363, "rationale": "The first two figures are literal, but 95 is absent from the context, is not derivable from 4,318 and 3.2, and the nearest context value differs far beyond the 25% contradiction band, so the buried fabrication is unsupported."}
{"case_id": "cc-147", "source": "generated", "language": "en", "claim_type": "ENTITY", "category": "contradicted", "context": "Article 15 of the Acme Corp data policy requires processors to delete customer records within 30 days of contract termination.", "answer": "Under Article 12, processors must delete customer records within 30 days of termination.", "focus_value": "Article 12", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "a similar identifier exists in the context: article 15", "nearest_context_value": "article 15", "similarity": 0.9, "verdict": "retry", "grounding_score": 0.5, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.253, "rationale": "Identifiers are exact-or-wrong, so an article number one digit off the context's Article 15 is contradicted and must not be softened to approximate even though the surrounding sentence is faithful."}
{"case_id": "cc-148", "source": "generated", "language": "en", "claim_type": "URL", "category": "contradicted", "context": "The migration steps are documented at https://docs.example.com/guides/v2/migration, and the API reference lives at https://api.example.com/reference.", "answer": "See https://docs.example.com/guides/v3/migration for the full migration steps.", "focus_value": "https://docs.example.com/guides/v3/migration", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "host docs.example.com appears in the context but this exact path does not (possible fabricated link)", "nearest_context_value": "docs.example.com", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.225, "rationale": "The host docs.example.com appears in the context but this exact path does not and neither URL is a prefix of the other, which is the fabricated-link signature."}
{"case_id": "cc-149", "source": "generated", "language": "en", "claim_type": "DATE", "category": "paraphrase", "context": "Acme Corp said the new pricing tiers will take effect in March 2025 for all annual plans.", "answer": "The new pricing tiers take effect on March 12, 2025 for annual plans.", "focus_value": "March 12, 2025", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "context only states 2025-03; the answer adds precision (2025-03-12)", "nearest_context_value": null, "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.168, "rationale": "The answer's date is finer than the context, which states only the month, so the added day is precision the source lacks and is approximate rather than supported or contradicted."}
{"case_id": "cc-150", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "coverage", "context": "架空商事の2024年度のクラウド事業売上は182億円で、前年度から増加した。", "answer": "クラウド事業は全体として堅調に推移しているようですが、見方によっては伸びが鈍化しているとも言えます。", "focus_value": "堅調に推移している", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.149, "rationale": "A qualitative statement produces no checkable claim; this is what coverage is for."}
{"case_id": "cc-151", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "coverage", "context": "架空商事は2024年11月18日に新しい在庫管理システムを稼働させた。", "answer": "新しい在庫管理システムは昨年から稼働しており、現在も大きな障害なく動いています。", "focus_value": "昨年", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 1, "latency_ms": 0.126, "rationale": "相対表現は claim にならない。counts.relative_date_mentions に計上されるのみ。"}
{"case_id": "cc-152", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "known_false_positive", "context": "移行手順は、スキーマ凍結、参照系の切り替え、更新系の切り戻し確認の順で実施する。", "answer": "1. スキーマを凍結する\n2. 参照系を切り替える\n3. 更新系の切り戻しを確認する", "focus_value": "2.", "expected_status": "not_extracted", "claimcheck_status": "not_extracted", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": null, "similarity": null, "verdict": "annotate", "grounding_score": 0.0, "coverage": 0.0, "claims_total": 0, "sentences_unverified": 3, "latency_ms": 0.137, "rationale": "List markers at a line start are excluded from numeric extraction."}
{"case_id": "cc-153", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "grounded", "context": "当四半期のサポート問い合わせは約1,200件で、前四半期とほぼ横ばいだった。", "answer": "当四半期のサポート問い合わせは1200件でした。", "focus_value": "1200件", "expected_status": "supported", "claimcheck_status": "supported", "agrees": true, "human_verdict": "acceptable", "evidence": "context literal: 1,200件", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.118, "rationale": "Normalisation strips the thousands separator and the hedge 「約」 sitting outside the numeric token, so 1200件 matches the context's 約1,200件 literally."}
{"case_id": "cc-154", "source": "generated", "language": "ja", "claim_type": "DATE", "category": "contradicted", "context": "架空商事は令和6年1月5日に改定版の利用規約を公表した。", "answer": "改定版の利用規約が公表されたのは2024年1月15日です。", "focus_value": "2024年1月15日", "expected_status": "contradicted", "claimcheck_status": "contradicted", "agrees": true, "human_verdict": "acceptable", "evidence": "context has a near but different date: 2024-01-05", "nearest_context_value": "2024-01-05", "similarity": null, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.138, "rationale": "The era year normalises to 2024-01-05, so the answer shares the year and month but states a different day, which is the near-but-different date trigger."}
{"case_id": "cc-155", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "hallucinated", "context": "架空商事の2024年度の物流コストは38億円で、営業費用全体の22%を占めた。", "answer": "物流コストは38億円で、営業費用全体の22%を占めました。このうち12億円が配送委託費です。", "focus_value": "12億円", "expected_status": "unsupported", "claimcheck_status": "unsupported", "agrees": true, "human_verdict": "acceptable", "evidence": null, "nearest_context_value": "38億円", "similarity": null, "verdict": "retry", "grounding_score": 0.6667, "coverage": 1.0, "claims_total": 3, "sentences_unverified": 0, "latency_ms": 0.289, "rationale": "The first sentence is literally grounded, but 12億円 is absent, not derivable from 38億 and 22%, and sits about 68% away from the nearest context value, well outside the 25% contradiction band, so the added breakdown is unsupported."}
{"case_id": "cc-156", "source": "generated", "language": "ja", "claim_type": "QUOTE", "category": "paraphrase", "context": "利用規約では、解約は前月末までに通知する必要があると定められている。", "answer": "規約では「解約は前月末までに通知する必要があります」と定められています。", "focus_value": "解約は前月末までに通知する必要があります", "expected_status": "approximate", "claimcheck_status": "approximate", "agrees": true, "human_verdict": "acceptable", "evidence": "closest context passage (similarity 0.89): 解約は前月末までに通知する必要がある", "nearest_context_value": null, "similarity": 0.8947, "verdict": "retry", "grounding_score": 0.0, "coverage": 1.0, "claims_total": 1, "sentences_unverified": 0, "latency_ms": 0.179, "rationale": "The bracketed quote only changes the sentence ending to polite form, giving about 0.89 similarity, which is above the 0.82 paraphrase threshold and therefore approximate rather than supported."}
{"case_id": "cc-157", "source": "generated", "language": "ja", "claim_type": "NUMERIC", "category": "derived", "context": "架空商事の2024年度の売上高は4,500百万円、営業利益は540百万円だった。", "answer": "2024年度の営業利益率は12%となります。", "focus_value": "12%", "expected_status": "derived", "claimcheck_status": "derived", "agrees": true, "human_verdict": "acceptable", "evidence": "derivable from context: 540 / 4,500 * 100 (percentage) = 12", "nearest_context_value": null, "similarity": null, "verdict": "pass", "grounding_score": 1.0, "coverage": 1.0, "claims_total": 2, "sentences_unverified": 0, "latency_ms": 0.237, "rationale": "12 is not literal but equals the two-term percentage 540百万 / 4,500百万 * 100 after magnitude normalisation, so it is derived, not supported."}