| # Data Format |
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| All files use JSON Lines: each line is one independent JSON object. |
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| ## Files and Statistics |
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| | File | Examples | Mean input tokens | Median input tokens | SHA256 | |
| |---|---:|---:|---:|---| |
| | `H2S-SFT.jsonl` | 4,228 | 44,097 | 28,304 | `c0a97173d03eb08585b384e8bb053d7b9f428876a6089538e3b458106f796359` | |
| | `H2S-RL.jsonl` | 2,419 | 43,656 | 27,726 | `5deadcab27337660cf79f3d481ed11385529e54edf1671f1088711a63ee956c5` | |
| | `H2S-Bench.jsonl` | 2,575 | 44,047 | 24,691 | `ff5daf469ea7ff71ec7a1ebf89bfa33a06a844546b714546f0fbe7d576b3980b` | |
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| Common fields are: |
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| | Field | Type | Description | |
| |---|---|---| |
| | `schema_version` | string | Record schema identifier | |
| | `id` | string | Stable example identifier | |
| | `benchmark` | string | Source benchmark/task family | |
| | `ability` | string | Long-context capability category | |
| | `question` | string | Question or task instruction | |
| | `input_token_num` | integer | Input tokens after preprocessing | |
| | `input_token_num_original` | integer | Input tokens before preprocessing | |
|
|
| ## H2S-SFT |
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| Schema version: `v3_sft_v1`. |
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| Every record contains a three-turn `messages` list with `system`, `user`, and |
| `assistant` roles. The assistant target follows: |
|
|
| ```text |
| <evidence>source-addressable evidence</evidence> |
| <summary>question-conditioned summary</summary> |
| <answer>benchmark-native final answer</answer> |
| ``` |
|
|
| ```json |
| { |
| "schema_version": "v3_sft_v1", |
| "id": "...", |
| "benchmark": "...", |
| "ability": "...", |
| "question": "...", |
| "input_token_num": 32768, |
| "input_token_num_original": 32000, |
| "messages": [ |
| {"role": "system", "content": "..."}, |
| {"role": "user", "content": "..."}, |
| {"role": "assistant", "content": "<evidence>...</evidence>..."} |
| ] |
| } |
| ``` |
|
|
| ## H2S-RL |
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| Schema version: `v3_rl_v1`. |
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| Each record contains a two-turn `prompt`, benchmark-native `gt`, and process |
| supervision used by the deterministic H2S reward: |
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| | Field | Type | Description | |
| |---|---|---| |
| | `prompt` | list | System and user messages supplied to the policy | |
| | `gt` | object | Final-answer target and source metadata | |
| | `reference_evidence` | object | Claims mapped to source block/span locators | |
| | `reference_spans` | list | Block IDs, document IDs, offsets, and exact spans | |
| | `reference_claims` | list | Atomic claims and their supporting evidence | |
| | `reference_subqueries` | list | Decomposed information needs and linked claims | |
| | `reference_summary` | string | Question-conditioned reference summary | |
| | `reward_metadata` | object | Answerability, renderer, and quality-control metadata | |
|
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| ## H2S-Bench |
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| Schema version: `v3_eval_v1`. |
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| ```json |
| { |
| "schema_version": "v3_eval_v1", |
| "id": "...", |
| "benchmark": "MRCR", |
| "ability": "precise_retrieval", |
| "question": "...", |
| "gt": {"answer": "..."}, |
| "input_token_num": 32768, |
| "input_token_num_original": 32000, |
| "input_token_num_mode": "qwen2.5-7b-instruct-chat-template", |
| "input": [ |
| {"role": "system", "content": "..."}, |
| {"role": "user", "content": "..."} |
| ] |
| } |
| ``` |
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| `gt.answer` preserves each benchmark's native representation and can be a |
| string or a list. H2S-Bench contains final-answer references only; it does not |
| contain reference evidence, spans, claims, subqueries, or summaries. |
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