???? ???????? ????????? ???? ???? ?? ??????? ???? ??? ??? ??...?????????? ???????????? ???? ??????...?? ?? ???? ?? ??????If a grammatical basic principle that is certainly included to ????is really a vowel ??and there's no other solution other than a vowel ??then that grammatical principle can not be extra to ?????? ???? ????? ??(?? ???? ???? ????