中性 ちゅうせい 爆弾 ばくだんでしょう
chūseishibakudandeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 中性子爆弾

1. Probably a neutron bomb.; It will likely be a neutron bomb.

Polite
Presumptive
Conjecture