機能 きのう指示 しじ記号 きごうではありませんでした
kinō shi jiki gōdewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 機能指示記号

1. Was not a functional indicator.; Was not a function instruction symbol.

Past/Perfective
Negative
Polite
Formal Register
Computing