a-a aaa aag aak aar aas ag- aga agg agk agr ags aka akg akk akr aks ar- ara arg ark arr ars as- asa asg ask asr ass gaa gag gak gar gas gga ggg ggr ggs gka gks gra grg grk grr grs gsa gsg gsk gsr gss ka- kaa kag kak kar kas kga kgs kkk kkr kks kra krg krk krr krs ksa ksg ksk ksr kss ra- raa rag rak rar ras rga rgg rgk rgr rgs rkg rkk rks rra rrg rrk rrr rrs rsa rsg rsk rsr rss saa sag sak sar sas sga sgg sgk sgr sgs sk- ska skg skk skr sks sr- sra srg srk srr srs ss- ssa ssg ssk ssr sss