[8o]-o-p - y [qy] t u--- q-o-p-p- [qp]-o--- [8o]-o-p - y [qy] t u--- q-i-i-i u [8i] u---t [8t]-t-t-t 0 q-w-q - w q q-w i u y t [8y] t---t [8t]-t-t-t 0 q-w-q - w q q-w i u y t [8y]-t