u---- i---- u---- y---- u---- i---- u---- y---- [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ul]---- i---- [uh]---- y---- [ul]---- i---- [uh]---- y---- l-u--u-- i--i- h-u--u-- y--y- l-u--u-- i--i- h-u--u-- y--y- l---- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- l---- [ux] - [ul] k l [uk] l [ix] - [il] k l [ik] l [ux] - [ul] k l [uk] l [yx]-y l [yk] l [yk] l [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l y---- [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ux] - l k l k l [ix] - l k l k l [ux] - l k l k l [yx] - l k l k l [ul]---- i---- [uh]---- y---- [ul]---- i---- [uh]---- y---- l-u--u-- i--i- h-u--u-- y--y- l-u--u-- i--i- h-u--u-- y--y- l---- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- u---- i---- u---- y---- u---- i---- u---- y---- u---- i---- u---- y---- u---- i---- u---- y---- y---- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- [ul] - l [ul]-k- [il] - l [il]-k- [ul] - l [ul]-x- [yz] - l [yl]-k- l-k-l-k- l-k