YOU SAID:
Mr. Fox's dog chased the brown cat
INTO JAPANESE
フォックスさんの犬が茶色の猫を追いかけた
BACK INTO ENGLISH
Fox's dog chased a brown cat
INTO JAPANESE
キツネの犬が茶色の猫を追いかけた
BACK INTO ENGLISH
Fox dog chased brown cat
INTO JAPANESE
キツネ犬が茶色の猫を追いかけた
BACK INTO ENGLISH
Fox dog chased brown cat
That didn't even make that much sense in English.