a-a aaa aaj aak aao aar aas aja ajj ajk ajo ajr ajs aka akj akk ako akr aks aoa aoj aok aoo aor aos ar- ara arj ark aro arr ars as- asa asj ask aso asr ass jaa jaj jak jao jar jas jja jjj jjk jjr jjs jka jkk jko jkr jks joa joj jok joo jor jos jra jrk jro jrr jrs jsa jsj jsk jso jsr jss ka- kaa kaj kak kao kar kas kjr kjs kkk kkr kks koa kok koo kor kos kra krk kro krr krs ksa ksk kso ksr kss oaa oaj oak oao oar oas oja ojo ojs oka okj okk oko okr oks oo- ooa ook ooo oor oos or- ora ork oro orr ors os- osa osj osk oso osr oss ra- raa raj rak rao rar ras rja rjk rjr rkk rko rks roa roj rok roo ror ros rra rrk rrr rrs rsa rsj rsk rso rsr rss saa saj sak sao sar sas sja sjj sjk sjr sjs sk- ska skj skk sko skr sks soa soj sok soo sor sos sr- sra srj srk sro srr srs ss- ssa ssj ssk sso ssr sss