文脈 ぶんみゃく じょう区切 くぎ でしょう
bun myakujōno kugirikodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 文脈上の区切り子

1. Probably a discourse marker.; Likely a sentence boundary particle.

Polite
Presumptive
Conjecture
Computing