特徴 とくちょう抽出 ちゅうしゅつじゃありませんでした
tokuchōchūshutsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 特徴抽出

1. Was not feature extraction.; It wasn't feature extraction.

Past/Perfective
Negative
Polite
Terminal Form