?"? ???? ???/???/???? ????? ???? ???? ???? ???? ????/?????/??? ?????? ???????/??????. ?"? ???? ???/???/????? {??????/?? ?????/????? ?-???? ?? ??????. ???/?????/??? ???? ????? ??????? ??????/??????/?????? ?"?/???/?? ??? ?"? ???? ?????/?????/??????? ?? ???????? ??????. {??? ?-???/?????/??? ????? ??????? ??????/??????/ preservation {?????/????????/