YOU SAID:
牛の水差しはどこで買ったのですか
INTO JAPANESE
牛の水差しはどこで買ったのですか
BACK INTO ENGLISH
Where did you buy the cow's waterfall?
INTO JAPANESE
どこで牛の滝を買ったのですか?
BACK INTO ENGLISH
Where did you buy a cow waterfall?
INTO JAPANESE
どこで牛の滝を買ったのですか?
BACK INTO ENGLISH
Where did you buy a cow waterfall?
That didn't even make that much sense in English.