a-a a-z aaa aag aak aao aar aas aaz ag- aga agg agk ago agr ags agz aka akg akk ako akr aks aoa aog aok aoo aor aos ar- ara arg ark aro arr ars arz as- asa asg ask aso asr ass asz az- aza azg azo azs azz gaa gag gak gao gar gas gaz gga ggg ggo ggr ggs ggz gka gko gks goa gog gok goo gor gos goz gra grg grk gro grr grs gsa gsg gsk gso gsr gss gza gzo gzr k-z ka- kaa kag kak kao kar kas kaz kga kgo kgs kkk kkr kks koa kog kok koo kor kos koz kra krg krk kro krr krs ksa ksg ksk kso ksr kss kzo oaa oag oak oao oar oas oga ogg ogo ogs oka okg okk oko okr oks oo- ooa oog ook ooo oor oos or- ora org ork oro orr ors orz os- osa osg osk oso osr oss oza ozo ozs ozz ra- raa rag rak rao rar ras raz rga rgg rgk rgo rgr rgs rkg rkk rko rks rkz roa rog rok roo ror ros roz rra rrg rrk rrr rrs rsa rsg rsk rso rsr rss rza rzo saa sag sak sao sar sas saz sga sgg sgk sgo sgr sgs sk- ska skg skk sko skr sks soa sog sok soo sor sos soz sr- sra srg srk sro srr srs ss- ssa ssg ssk sso ssr sss ssz sza szr z-g zaa zag zak zao zar zas zaz zgg zgs zka zks zo- zoa zog zok zoo zor zos zro zrs zsa zsg zsz zzr zzs zzz