文書 ぶんしょクラス記述 きじゅつ ではありませんでした
bunshokurasukijutsubudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 文書クラス記述部

1. Was not the document class description.; Was not a description of the document class.

Past/Perfective
Negative
Polite
Formal Register
Computing