YOU SAID:

Hmm, What does that button do?

INTO JAPANESE

うーん、そのボタンには何が?

BACK INTO ENGLISH

Hmm, that button is what?

INTO JAPANESE

うーん、そのボタンは何ですか。

BACK INTO ENGLISH

Hmm, what is that button.

INTO JAPANESE

うーん、そのボタンは何です。

BACK INTO ENGLISH

Hmm, what is that button.