# Contract — F4-conf-02

Question. For each of six literature-review assertions (data/assertions.json), decide from the cited source extract alone whether it is supported / not_supported / not_assessable. Estimands. Six categorical verdicts, each with one locator and one-sentence reason. Meaningful under the task's rules: "supported" requires every element (sign, magnitude, uncertainty, significance, population) to hold; partial contradiction => not_supported; not_assessable only when the extract has no bearing quantity. Conventions. % change = 100(exp(b)-1); 95% CI = b ± 1.96·SE (2.0 acceptable). Outputs. out/results.json keys: verdicts, locators, reasons, n_supported, n_not_supported, n_not_assessable, task_id ("F4-conf-02"), feasibility, feasibility_reason, data_issues [{issue,handling}], n_input_rows {file: lines/items}, n_analysed, random_seed (null). Also out/report.md (Question; Data and exclusions; Method; Results; Uncertainty; Limitations and open issues), out/analysis.py, out/claims.json, out/exclusions.csv, out/state/*. Information rules. Only the two extracts are admissible; no memory of papers or outside knowledge. Invalidity. Using outside info; a source missing; assertion citing a source not provided.