e-e-e-e- e-e-e x [ex] x [ec] x e-e-[ex] x [ec] x e-e x [ex] x [ec] x e z [ez] l e k [tk] j [tj]-t l [tl] l [ek] j e l [ek] j e l [Wx] k [Wk]-W k [Wl] z [ex] l [ek] j [qh] g [qf] D [0f]-[uf] - [pj] [oh] [ig] [uf]-[uf] - [pj] [oh] [ig] [uf] [pj] [oh] [ig] [uf] [pj] [oh] [ig] [uf]-[0d]-[Qs]-[Wa]- [ep]-e-e-e- e-e-e x [ex] x [ec] x e-e-[ex] x [ec] x e-e x [ex] x [ec] x e z [ez] l e k [tk] j [tj]-t l [tl] l [ek] j e l [ek] j e l [Wx] k [Wk]-W z [Wl] k [ex] l [el] j [qj] g [qg] d [qs] f [qf] s [Wa] d [Wd] a [ep]-p o t e t u [ep]-p u t e t u [ea]-- [us]-- [ep]