YOU SAID:
fat cats wearing party hats on a boat
INTO JAPANESE
太った猫がボートでパーティー帽子をかぶって
BACK INTO ENGLISH
Fat cat wearing a party hat on a boat
INTO JAPANESE
太った猫がボートにパーティーハットをかぶって
BACK INTO ENGLISH
Fat cat wearing a party hat on a boat
That didn't even make that much sense in English.