YOU SAID:
My mom has two cats that only eat pork.
INTO JAPANESE
私のお母さんには豚肉だけを食べる猫が2匹あります。
BACK INTO ENGLISH
My mother has two cats that only eat pork.
INTO JAPANESE
私の母は豚肉だけを食べる猫が2匹あります。
BACK INTO ENGLISH
My mother has two cats that only eat pork.
That didn't even make that much sense in English.