清少納言 せいしょうなごん知恵 ちえ いたであれば
seishōnagonchieno itadeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 清少納言知恵の板

1. If Kiyoshunagon's wisdom were a plank…; If Kiyoshunagon had wisdom like a plank…

Ba Conditional