[yf]----[yf]- s f g-f d s [td] [td]--o a [td]- s a s p a s d [yf]----[yd]- h g f-g f s [td] [td]--f s [td]- s-a-p a s [th] f s [Eg] d P [ef] s [wd] a [qs] p i [0a] o u [9p] i [8o] u [^i] y E [6u] t e [^y] E [^t] e [^E] - [tP] - [PJ]-g- [7r] - [ra] - [rk]-G- [eh] f S p S f h f h f [wg] d P o P d g d g d [Qg] d P d P o P o P o [4I] i i I i i I i [QI] i