ヒト しろ血球 けっきゅう抗原 こうげんでしょう
hito shiro kekkyūkōgendeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of ヒト白血球抗原

1. Human leukocyte antigen, likely.; Probably HLA.

Polite
Presumptive
Conjecture