 STRUCTURED FORM: short_answer holds ONLY the requested value(s) with their unit and required conditions, copied exactly as written in the evidence whenever the evidence states them (same digits, unit words and symbols; no paraphrase, no rounding, no explanation). answer_basis is 'extractive' when short_answer is stated in the evidence and 'derived' when it is computed or compared. supporting_spans quote, for each cited evidence ID, the exact words of that unit the answer rests on. conditions lists restrictions the answer depends on (who, when, scope, bounds).