a-a a-z aaa aag aam aao aaz ag- aga agg agm ago agz ama amg amm amo amz aoa aog aom aoo az- aza azg azm azo azz gaa gag gam gao gaz gga ggg ggm ggo ggz gma gmg gmm gmo gmz goa gog gom goo goz gza gzo m-o maa mag mam mao maz mga mgm mgo mgz mma mmg mmm mmo mmz moa mog mom moo moz mza mzm oaa oag oam oao oga ogg ogo om- oma omg omm omo omz oo- ooa oog oom ooo oza ozm ozo ozz z-g zaa zag zam zao zaz zgg zma zmm zo- zoa zog zom zoo zzz