?? ???? ???????? ?????? ????????? ?? ??????.If a grammatical theory that is definitely extra to ????is really a vowel ??and there is no other possibility besides a vowel ??then that grammatical basic principle cannot be included to ????- ???? ??: ??, ??, ??(??, ???????? ??), ??????, ??, ????????? ????? ???? ???? ?? ?? ???? ???? ??? ?????? ?????????