文書 ぶんしょ がた宣言 せんげん部分 ぶぶん集合 しゅうごうじゃなかった
bunshogata sengembubunshūgōjanakatta

Noun
Da Copula

The past negative form of 文書型宣言部分集合

1. Wasn't a document-type declaration subset.; Wasn't a set of document-type declarations.

Past/Perfective
Negative
Computing