県立けんりつ高等こうとう学校がっこうでしょう
kenritsukōtōgakkōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 県立高等学校

1. Probably a prefectural high school.; Likely a public high school.

Polite
Presumptive
Conjecture