空中 くうちゅう浮遊 ふゆう生物 せいぶつでしょう
kūchūfuyūseibutsudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 空中浮遊生物

1. Likely a floating organism.; Probably a floating creature.

Polite
Presumptive
Conjecture
Biology