乳酸 にゅうさん桿菌 かんきんでしょう
nyūsankankindeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 乳酸桿菌

1. Lactic acid bacteria, probably.; It will likely be lactic acid bacteria.

Polite
Presumptive
Conjecture