???????? ?????? ?????????? ?????????? ???????????? ?????? ?? ???????? ?? ?? ?? ?? ?? ?? ?? ??If a grammatical basic principle that's included to ????is often a vowel ??and there's no other choice apart from a vowel ??then that grammatical theory can't be additional to ?????? ?? ???? ?? ??????- ???? ??(?????????? ?? ??) : ??, ?? ??????, ??, ??, ???