YOU SAID:
a fat cat sat on the mat because it was a prat and was hit by a cricket bat by a rat
INTO JAPANESE
太った猫はマットの上に座った
BACK INTO ENGLISH
Fat cat sat on the mat
INTO JAPANESE
マットの上に座っている太った猫
BACK INTO ENGLISH
Fat cat sitting on mat
INTO JAPANESE
マットの上に座っている太った猫
BACK INTO ENGLISH
Fat cat sitting on mat
That didn't even make that much sense in English.