YOU SAID:
She is what? - Only a girl?
INTO JAPANESE
彼女は何? - ただの女の子?
BACK INTO ENGLISH
What is she? - Just a girl?
INTO JAPANESE
彼女は何者? - ただの女の子?
BACK INTO ENGLISH
Who is she? - Just a girl?
INTO JAPANESE
彼女は誰? - ただの女の子?
BACK INTO ENGLISH
Who is she? - Just a girl?
That didn't even make that much sense in English.