???? ?? 10??? ‘??? ????’ ??? ????. ??? ????? ???? 15? ?? ?? ??? ??????? ?????? ?? “30?? ??? ????? ??? ??? ???? SPA ???? ‘SPAO’? 10?? ?????”? ???.
SPA? ???? ??, ??? ? ??? ???? ?? ??? ??? ??? ???? ?? ??? ??? ??? ???? ?? ????. ???? ????? ??? ????, ???? ‘??’ ?? ??. ??? ?? “SPAO? ????? ????? ? ???? ???? ??”? “????? 80% ???? ??? ??? ?”??? ????.
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