a-a a-z aaa aag aak aao aar aaz ag- aga agg agk ago agr agz aka akg akk ako akr aoa aog aok aoo aor ar- ara arg ark aro arr arz az- aza azg azo azz gaa gag gak gao gar gaz gga ggg ggo ggr ggz gka gko goa gog gok goo gor goz gra grg grk gro grr gza gzo gzr k-z ka- kaa kag kak kao kar kaz kga kgo kkk kkr koa kog kok koo kor koz kra krg krk kro krr kzo oaa oag oak oao oar oga ogg ogo oka okg okk oko okr oo- ooa oog ook ooo oor or- ora org ork oro orr orz oza ozo ozz ra- raa rag rak rao rar raz rga rgg rgk rgo rgr rkg rkk rko rkz roa rog rok roo ror roz rra rrg rrk rrr rza rzo z-g zaa zag zak zao zar zaz zgg zka zo- zoa zog zok zoo zor zro zzr zzz