a-a a-z aaa aad aag aao aar aaz ad- ada add adg ado adr adz ag- aga agd agg ago agr agz aoa aod aog aoo aor ar- ara ard arg aro arr arz az- aza azd azg azo azz daa dad dag dao dar daz dda ddd ddg ddo ddr ddz dga dgd dgg dgr dgz doa dod dog doo dor doz dra drd drg dro drr drz dza dzd dzo dzr g-d gaa gad gag gao gar gaz gda gdd gdo gdr gga ggd ggg ggo ggr ggz goa god gog goo gor goz gra grd grg gro grr gza gzo gzr oaa oad oag oao oar oda odd odg odo odr oga ogd ogg ogo oo- ooa ood oog ooo oor or- ora ord org oro orr orz oza ozo ozz ra- raa rad rag rao rar raz rda rdd rdg rdo rdr rga rgd rgg rgo rgr roa rod rog roo ror roz rra rrd rrg rrr rza rzo z-g zaa zad zag zao zar zaz zgg zo- zoa zod zog zoo zor zro zzr zzz