???? ???????? ????????? ???? ???? ?? ??????????????? ??? ???? ???????? ??????? ??.” ????? ?????? ???? ???????? ?????? ?????? ???????? ?????? ?? ????.If a grammatical theory that's extra to ????is really a vowel ??and there is no other selection other than a vowel ??then that grammatical theory can not be additional to ???????????? ???? ?? ????