せい風俗 ふうぞく産業 さんぎょうではありませんでした
seifū zoku sangyōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 性風俗産業

1. Was not in the sex industry.; Was not involved in the adult entertainment industry.

Past/Perfective
Negative
Polite
Formal Register