???? ???????? ????????? ???? ???? ?? ????????????? ?? ?????????? ?????? ???? ???????? ???????????? ?????? ????[]?? ??????????.?? ?????? ?? ?????? ???? ????. ??, ?? ?? ??? ?? ?????????? ?? ?? ????If a grammatical principle that is definitely extra to ????is a vowel ??and there is no other solution aside from a vowel ??then that grammatical theory ca