ぎんがみあじでしょう
銀紙鯵でしょう
gingamiajideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of ぎんがめあじ

1. Silver-colored horse mackerel, probably.

Polite
Presumptive
Conjecture
Usually Written in Kana