??, ???? ???? ?? “????? ??? ?? ?????? ?????? ?”? ?????? ?? ??????. ??·?? ???? ??? ????????????? ???????? ??????. ??????? ???? ??????, ???? ???? ???? ?? ??? ??????.If a grammatical theory that's included to ????is often a vowel ??and there's no other option other than a vowel ??then that grammatical theory can not be included to ???? ???????? ?