YOU SAID:
My cow has five stars
INTO JAPANESE
私の牛には5つ星があります
BACK INTO ENGLISH
My cow has 5 stars
INTO JAPANESE
私の牛は5つ星です
BACK INTO ENGLISH
My cow is 5 stars
INTO JAPANESE
私の牛は5つ星です
BACK INTO ENGLISH
My cow is 5 stars
That didn't even make that much sense in English.