部分 ぶぶん全体 ぜんたい関係 かんけいでしょう
bubun zentai kankeideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 部分全体関係

1. Probably a part-whole relationship.; Likely a part-whole relation.

Polite
Presumptive
Conjecture
Computing