懸賞 けんしょう論文 ろんぶんではありませんでした
kenshōrombundewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 懸賞論文

1. Was not a prize-winning paper.; Was not an essay contest entry.

Past/Perfective
Negative
Polite
Formal Register