# Contract — F4-conf-03

Question. Re-express five printed treatment effects (data/effects.json, E1–E5) on each item's target definition, using only quantities printed in the cited extract under data/sources/ and an explicit transformation; where impossible, say so and name the missing quantity. Estimands. Harmonised point estimates (no uncertainty propagation). Meaningful under the stated conventions: log-point b -> 100(exp(b)-1)%; pp effect Δ with control level p -> 100Δ/p %; elasticity η with proportional change g -> 100ηg %; LPM coefficient on 0-1 scale -> ×100 pp. Outputs. out/results.json keys: harmonised{E1..E5: value, unit, transformation, harmonisable, missing_quantity, locator}, n_harmonised, n_not_harmonisable, task_id="F4-conf-03", feasibility, feasibility_reason, data_issues[{issue,handling}], n_input_rows{file: lines/items}, n_analysed, random_seed=null. out/report.md (Question; Data and exclusions; Method; Results; Uncertainty; Limitations and open issues), out/analysis.py (prints relied-on source lines), out/claims.json. Information rules. Only extracts are admissible; no remembered values; harmonisable=false only when a required quantity is not printed (value null, missing_quantity named). Printed numbers used as printed. Invalidity. Using external numbers; guessing baselines; altering printed values; feasibility mislabelled.