柏鵬 はくほう時代 じだいでしょう
wa kuhōjidaideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 柏鵬時代

1. Probably the Hakuhō era.; Likely the Hakuhō period.

Polite
Presumptive
Conjecture
Sumo