YOU SAID:
my sister drank my dogs pee
INTO JAPANESE
私の妹は私の犬のおしっこを飲んだ
BACK INTO ENGLISH
My sister drank my dog pee.
INTO JAPANESE
姉は私の犬のおしっこを飲んだ。
BACK INTO ENGLISH
My sister drank my dog pee.
That didn't even make that much sense in English.