???? ???????(????)????????????? ???? ????????.?? ?? ?? ? ??? ???? ??? ????? ??? ???? ??? ??? ??? ? ????. ???? ?? ??? ??? ??? ? ???? ???? ????? ?????.If a grammatical basic principle that is added to ????is actually a vowel ??and there's no other choice in addition to a vowel ??then that grammatical basic principle cannot be