???? ????? ? ???? ???? ? ????? ?????? ???? ? ????????? ??????? ? ???? ??? ??????? ??????? ?????? ? ??? ???? ?????? ????? ? ???? ????? ? ????? ????? ???? ?????????? ????? ??????? ?????????? ????? ????????????? ???? ?? ???????" than every time they centered their interest for extended blocks of time. Regrettably, The scholars also underestimated the