銘柄 めいがら牛肉 ぎゅうにくではありませんでした
meigaragyūnikudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 銘柄牛肉

1. It was not a branded/famous beef.; It wasn't a high-grade beef.

Past/Perfective
Negative
Polite
Formal Register