??, ???? ???? ?? “????? ??? ?? ?????? ?????? ?”? ?????? ?? ??????. ??·?? ?????????? ??(?? ???? ???? ??, ?????? ????? ?????????????????. ??If a grammatical basic principle that may be extra to ????is often a vowel ??and there's no other option apart from a vowel ??then that grammatical basic principle cannot be extra to ???????? ????? ???? ????