???? ??????? ??????? ???? ????? ??? undertakings ??? ????? long. ???? ??? ????????? ?????????? ??? side ???? concerns upkeep machinery, including programs ???????. ?????? ??? ????????? ?? ???? ????????? ??? parties and clarifying ???????? ?? party ?????? ?? ensuring performance undertakings ???

????? ?????? ???????? ?? ??? ??? ?????? ???? ??????? ???????? ???????. ????? ??? ??????? ?????? ???? ???? ??? ????? ?????? ? ???? ?????????. ????? ???? ??? ???? ???????? ?? ??????? ????? ?????? ??????? ??????? ?????? ?????? ?????? ??????? ?? ???????? ?? ???? ??? ??????. ????? ?? ????????