vlbl wlbl2 xlbl2a ylbl zlbl2
kccl2 lccl2a mccl nccl2 occl2a
92cl2a a3cl b3cl2 c3cl2a d3cl
ytdl ztdl2 0tdl2a 1tdl 2tdl2
nkel2 okel2a pkel qkel2 rkel2a