YOU SAID:
cookie is the best dog
INTO JAPANESE
クッキーは最高の犬です
BACK INTO ENGLISH
Cookies are the best dogs
INTO JAPANESE
我々のが最高だ
BACK INTO ENGLISH
Ours are the best.
INTO JAPANESE
我々のが最高だ
BACK INTO ENGLISH
Ours are the best.
That didn't even make that much sense in English.