y _______________ d 7 _______________ y yyy y ___________ 7 ___________ d l --- --------- 7 ___________ 7b --- _______ b 7b l l yd 7b ) l ) l d d7 d 7 d 7 d d 7 d7 d d b d ( d ( ( d7 d b _ __ d b _ __ b _ __ l l l --- 7 7 7 7 7 7 d d b 7 7 l 7 7 l 7 7 * b - -- ---------- -- ------------ d b ns 7 7 ------- b ------- b *** 7 7 7 7 y ---- M I M I C 7 7 7 7 y 7 7 7 7 7 7