赤白 あかしろ珪石 けいせきじゃありませんでした
akashiro keisekijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 赤白珪石

1. It was not red and white pebbles.; It wasn't red and white stones.

Past/Perfective
Negative
Polite
Terminal Form