??, ???? ???? ?? “????? ??? ?? ?????? ?????? ?”? ?????? ?? ??????. ??·?? ????????? ???? ??? ???????????? ???????? ??????????. ??????? ???? ??????????.If a grammatical basic principle that is definitely added to ????can be a vowel ??and there's no other option apart from a vowel ??then that grammatical theory can't be added to ?????????? ???? ?