天皇 てんのう皇后 こうごう りょう陛下 へいかでしょう
tennōkōgo uryōe ikadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 天皇皇后両陛下

1. Their Majesties the Emperor and Empress, likely.; Probably the Emperor and Empress.

Polite
Presumptive
Conjecture