公開 こうかい文種 ぶんしゅ べつではありませんでした
kō kaibunshubetsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 公開文種別

1. Was not a public document type.; Was not a publicly disclosed document type.

Past/Perfective
Negative
Polite
Formal Register
Computing