YOU SAID:
Who ate my sisters' mother's pie?
INTO JAPANESE
誰が私の姉妹の母親のパイを食べましたか?
BACK INTO ENGLISH
Who ate my sister's mother's pie?
INTO JAPANESE
誰が私の姉の母親のパイを食べましたか?
BACK INTO ENGLISH
Who ate my sister's mother's pie?
Come on, you can do better than that.