???? ?? ???? ????? ??????? ?? ???? ????? ????? ?? ???? ???? ???????? ??? ?? ?????? ????. ???? [??? ??????2] ?? ?????? ?????? ??????? ?? ??????. ????] ?? ???? ??????? ???? ?????? ??? ?????? ????| ??? ????}. ???? ??????? ??????? ???????? ??????? ?? ???? ???? ????? {????? ?????????????? ?? ?????|?? ??????? ???? ????? ???? ??? Highly trained ?