異物 いぶつ混入 こんにゅうではありませんでした
ibutsukonnyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 異物混入

1. It was not foreign matter contamination.; It was not a case of foreign object inclusion.

Past/Perfective
Negative
Polite
Formal Register