分水 ぶんすい山脈 さんみゃくじゃありませんでした
bunsuisammyakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 分水山脈

1. It wasn't the dividing range.; It wasn't a watershed.

Past/Perfective
Negative
Polite
Terminal Form