有用ゆうよう生物せいぶつぐんでしょう
yūyō biseibutsu gundeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 有用微生物群

1. Useful microbial community, probably.; It will likely be a useful microbial community.

Polite
Presumptive
Conjecture