延坪 のべつぼ とう砲撃 ほうげき事件 じけんでしょう
nobetsubotō hōgekijikendeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 延坪島砲撃事件

1. Probably the Yeonpyeong Island shelling incident.

Polite
Presumptive
Conjecture