YOU SAID:
bob was eaten by the pizza of tom's cat
INTO JAPANESE
ボブはトムの猫のピザに食べられた
BACK INTO ENGLISH
Bob was eaten by Tom's cat pizza
INTO JAPANESE
ボブはトムの猫ピザに食べられました
BACK INTO ENGLISH
Bob was eaten by Tom's cat pizza
That didn't even make that much sense in English.