宣言 せんげん部分 ぶぶん集合 しゅうごうでしょう
sengembubunshūgōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 宣言部分集合

1. Probably a declaration subset.; Likely a declaration subset.

Polite
Presumptive
Conjecture
Computing