YOU SAID:
Cats eat mats on fat rat bats.
INTO JAPANESE
猫は太ったネズミコウモリのマットを食べます。
BACK INTO ENGLISH
Cats eat fat rat bat mats.
INTO JAPANESE
猫は太ったラットのコウモリのマットを食べます。
BACK INTO ENGLISH
Cats eat fat rat bat mats.
That didn't even make that much sense in English.