A second per-row column was added: target_response_distractor — a context-aware plausible-but-wrong alternative to target_response, generated by Haiku 4.5 with explicit instructions to:
match the length (token count) of the correct answer within ±10%
mirror the structure (markdown, opening phrase, sentence count, bold/list markup)
match the vocabulary register (math/ethics/etc.)
flip exactly one substantive fact (verdict, number… See the full description on the dataset page:
https://huggingface.co/datasets/cds-jb/cot-oracle-convqa-chunked.
