YOU SAID:
I know a secret down in uncle tom's cabin
INTO JAPANESE
私はトムのおじさんのお部屋の秘密を知っている
BACK INTO ENGLISH
I know the secret of Tom's uncle's room
INTO JAPANESE
私はトムのおじさんの部屋の秘密を知っている
BACK INTO ENGLISH
I know the secret of Tom's uncle's room
That didn't even make that much sense in English.