???? ?? ?????? ????? ??????? ????? ??? ?? ??????? ???? ????? ????? ???? ?? ??????? ?????? ???? ????? ????????? ?? ???? ????????. ??? ?? ??? ??????? ???? ???? ?? ??? ??????? ???? ???? ?? ???? ??? ?? ????? ?????? ?????? ??? ????? ??????? ????? ????? ??????. By lessening water and/or air in the i