清少納言 せいしょうなごん知恵 ちえ いたでしょう
seishōnagonchieno itadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 清少納言知恵の板

1. Probably Kiyoshō Naganori's wisdom.; Likely a Kiyoshō Naganori-level insight.

Polite
Presumptive
Conjecture