原発 げんぱつ不明 ふめいがんではありませんでした
gempatsu fumeiga ndewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 原発不明がん

1. Was not cancer of unknown primary.; Was not a cancer with an unknown origin.

Past/Perfective
Negative
Polite
Formal Register
Medicine