共通 きょうつう番号 ばんごう制度 せいどでしょう
kyōtsūbangōseidodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 共通番号制度

1. Probably a common numbering system.; Likely a unified numbering system.

Polite
Presumptive
Conjecture