??(??)?? ????????????, ???????????? ???? '?? ????'???? ??, ?? ?????????? ???????????????? ?????? ???? ????????.  ???? ???? ??? ??? ??...?????????? ???????????? ???? ??????...If a grammatical basic principle that is additional to ????is a vowel ??and there is no other selection aside from a vowel ??then that grammatical theory can not be included