水雷 すいらい巡洋 じゅんよう かんでしょう
su irai jun'yōka ndeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 水雷巡洋艦

1. Probably a light cruiser.; Possibly a light cruiser.

Polite
Presumptive
Conjecture