東証とうしょう株価かぶか指数しすうでしょう
tōshōkabukashisūdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 東証株価指数

1. Probably the Nikkei Stock Average.; It will likely be the Nikkei Stock Average.

Polite
Presumptive
Conjecture