???? ???????? ????????? ???? ???? ?? ???????? ???? ???? ???? ???? ???, ???? ???? ???? ???? ???? ???? ???? ???? ???? ??????????? ??????? ?????????? ??????. ??????????????/?? ?????????? ??????.If a grammatical theory which is included to ????is actually a vowel ??and there is no other selection aside from a vowel ??then that grammatical basic princip