行列 ぎょうれつ理論 りろんじゃなかったです
machigyōretsurironjanakattadesu

Noun
Desu Copula

The polite, past negative form of 待ち行列理論

1. Queueing theory wasn't.; It wasn't queueing theory.

Past/Perfective
Negative
Polite
Casual Register