YOU SAID:
the cat in the cat knows a lot about that
INTO JAPANESE
猫の猫はそれについてたくさん知っている
BACK INTO ENGLISH
A cat's cat knows a lot about it
INTO JAPANESE
猫の猫はそれについてたくさん知っている
BACK INTO ENGLISH
A cat's cat knows a lot about it
That didn't even make that much sense in English.