宣言 せんげん部分 ぶぶん集合 しゅうごうじゃないです
sengembubunshūgōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 宣言部分集合

1. It's not a declaration subset.; It's not part of the declaration.

Negative
Polite
Casual Register
Computing