熱水 ねっすい湧出 ゆうしゅつ いきでしょう
ne' sui yūshutsu ikideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 熱水湧出域

1. Probably a hot spring area.; Likely a hydrothermal vent field.

Polite
Presumptive
Conjecture