YOU SAID:
Cat decapitates dog with bat
INTO JAPANESE
猫がコウモリで犬を斬首する
BACK INTO ENGLISH
Cat beheads a dog with a bat
INTO JAPANESE
猫はコウモリと犬を斬首します
BACK INTO ENGLISH
Cat beheaded bat and dog
INTO JAPANESE
猫斬首コウモリと犬
BACK INTO ENGLISH
Cat beheaded bat and dog
That didn't even make that much sense in English.