腐植 ふしょく栄養 えうよう ではありませんでした
fushokueuyōkodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 腐植栄養湖

1. Was not a humic lake.; Was not a eutrophic lake.

Past/Perfective
Negative
Polite
Formal Register