区切 くぎ 集合 しゅうごうではありませんでした
kugirishi shūgōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 区切り子集合

1. Was not a district subset.; Was not a segmented subset.

Past/Perfective
Negative
Polite
Formal Register
Computing