電車 でんしゃ どう相撲 すもうじゃありません
densha dō sumōjārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 電車道相撲

1. It is not sumo on a train track.; It's not that simple.; It's not a walk in the park.

Negative
Polite
Terminal Form
Sumo