かく兵器 へいき禁止 きんし条約 じょうやくじゃないです
kakuheikikinshijōyakujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 核兵器禁止条約

1. It's not the Treaty on the Prohibition of Nuclear Weapons.

Negative
Polite
Casual Register