# Contract — F4-conf-03
**Question.** Re-express five printed treatment-effect estimates (data/effects.json, E1–E5) on a stated target definition using only quantities printed in the cited source extracts and an explicit transformation; where impossible, say so and name the missing quantity.
**Estimands.** Harmonised point estimates (no uncertainty propagation). Meaningful under TASK.md conventions: log-point b -> 100(exp(b)-1)%; pp effect Δ with control level p -> 100Δ/p %; elasticity η with proportional change g -> 100ηg %.
**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. Plus out/report.md (6 sections), out/analysis.py (prints source lines used), out/claims.json.
**Information rules.** Extracts are the only evidence; no remembered/external values; harmonisable=false only when a required quantity is not printed (value null, missing_quantity named). Printed numbers used exactly as printed.
**Invalidity.** Using unprinted quantities or guessing a baseline; misreading a table cell; inconsistent counts.