- ??? ????(????? ??)???? ?? ????????? ?? ???? ??.If a grammatical principle that is certainly extra to ????is really a vowel ??and there's no other solution besides a vowel ??then that grammatical theory can't be extra to ?????? ???? ??????, ????????????, ???? ???? (???????? ??)???? ?? ?????????? ?? ?????? ?????????? ?? ?? ?? ????? ???? ????? ??(??