オクラホマシティ連邦 れんぽう政府 せいふビル爆破 ばくは事件 じけんであれば
okurahomashitirempōseifubirubakuhajikendeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of オクラホマシティ連邦政府ビル爆破事件

1. If the Oklahoma City federal building bombing happened; If there had been the Oklahoma City federal building bombing

Ba Conditional