中核 ちゅうかく文書 ぶんしょじゃなかったです
chūkakubunshojanakattadesu

Noun
Desu Copula

The polite, past negative form of 中核文書

1. Wasn't a core document.; Wasn't a key document.

Past/Perfective
Negative
Polite
Casual Register
Computing