YOU SAID:

They know what is what, but they don’t know what is what, they just strut.

INTO JAPANESE

彼らは何が何であるかを知っていますが、何が何であるかを知りません。

BACK INTO ENGLISH

They know what they are, but they don't know what they are.

INTO JAPANESE

彼らは彼らが何であるかを知っていますが、彼らは彼らが何であるかを知りません。

BACK INTO ENGLISH

They know what they are, but they don't know what they are.