??? C ?C ???? C??C?? ?? C??UC??E ?C E?CE??? ??? C???C? ???U ???? ??CE? U?? AE? E?C ???? ???? ??C?? ?? O?I ?E?? ?? ?E??C??? ?C???? C???? ?I?? ?? ????? ?C? C???? E? E??E:

?? U??C ???O?U???? ?U?? C????CE ... ?U??U??? ?U?C? ?U????C? ??U?C?C

??U?C C?E??U?C ??UC? C???CI? ... ??UE?C C??U?CE? ??????C O?C?C (1)

??? ???? ?? C???? ?? C???C? ???E? C??C? ?C????E? U?? ?? ?C?? C???CE ??I? ????? ????E C???C?E ??E??IC E?????? ?C? ???? E? ??I ???E:

?? U?I ??U?? ????? EU?C ... ?U?? C???E? ?? ???U? ???????

??U?UI ?????C ... ??? ????U? ?? C???E ?????