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README.md

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+---
+license: cc-by-nc-4.0
+language:
+- si
+task_categories:
+- multiple-choice
+tags:
+- sinhala
+- sinhalammlu
+---
+
+# team-qbits MCQ SFT data (v3)
+
+Supervised fine-tuning data for our ICTer 2026 SinhalaMMLU Shared Task submission.
+
+- `sft_train3.jsonl` — 21,235 prompt/completion examples from 7,151 questions
+- `sft_val3.jsonl` — 721 held-out questions, one example each
+
+Derived from publicly available Sri Lankan examination papers (pastpapers.wiki,
+e-thaksalawa.moe.gov.lk), O/L and Grades 6-11, covering 19 subjects including all 14 that
+appear in the SinhalaMMLU easy split. We do not redistribute the source PDFs.
+
+**Decontamination.** Checked against the released SinhalaMMLU `TEST/easy` split, which matched
+and removed 26 questions. That split was used only as a blocklist — never for training,
+checkpoint selection, prompt design or hyperparameter choice. The train/validation split is
+grouped by source paper, so no paper appears on both sides.
+
+**Format.** Each question is rendered under several prompt templates (Sinhala instruction, bare,
+English instruction) with the option order shuffled; the target is the option number and loss is
+applied to the answer tokens only.
+
+Pipeline and code: `SinhalaMMLU-SharedTask/team-qbits`.