??? ??????? ?????????? ?????? ??? pglsa ??????? , ????????? ?????????? ?? ???????????????? ??????? ??????? ????? ??????????? ??????? ??? ??????? ?????? ??? pglsa ??????? ??? ???????? pg????? : ???????????????????? ??????? ?????????? ????????????? pglisa ????? ?????????????????? ?????????? ????? ??????????????? ??????? ??????