1step,rule,n_before,n_after,n_removed,rationale21,month >= 1992-03-01 (lag-2 of ip_growth and neworder_chg required),417,415,2,1992-01/02 lack neworder_chg and/or two ip_growth lags; task fixes training start at 1992-0332,s + 1 <= last origin 2026-08-01 (s <= 2026-07-01),415,413,2,information rule: targets dated after the origin may not be used in training (2026-08 row's target 2026-09 is the evaluation target; 2026-09 has no target)4