YOU SAID:

if banana is banana then what is banana

INTO JAPANESE

バナナがバナナならバナナは何ですか

BACK INTO ENGLISH

If a banana is a banana, what is a banana

INTO JAPANESE

バナナがバナナである場合、バナナとは何ですか

BACK INTO ENGLISH

If the banana is a banana, what is a banana

INTO JAPANESE

バナナがバナナである場合、バナナは何ですか

BACK INTO ENGLISH

If the banana is a banana, what is a banana