自家 じか薬籠 やくろう ちゅう ものでしょう
jikaya kurōchūno monodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 自家薬籠中の物

1. Probably something one has readily available.; Probably within one's own expertise.

Polite
Presumptive
Conjecture