YOU SAID:

You don't even know who you think they know.

INTO JAPANESE

あなたは彼らが誰を知っていると思うかさえ知りません。

BACK INTO ENGLISH

You don't even know who they think they know.

INTO JAPANESE

あなたは彼らが彼らが知っていると思う人さえ知りません。

BACK INTO ENGLISH

You don't even know who they think they know.