a-a aaa aaj aao aar aas aja ajj ajo ajr ajs aoa aoj aoo aor aos ar- ara arj aro arr ars as- asa asj aso asr ass jaa jaj jao jar jas jja jjj jjr jjs joa joj joo jor jos jra jro jrr jrs jsa jsj jso jsr jss oaa oaj oao oar oas oja ojo ojs oo- ooa ooo oor oos or- ora oro orr ors os- osa osj oso osr oss ra- raa raj rao rar ras rja rjr roa roj roo ror ros rra rrr rrs rsa rsj rso rsr rss saa saj sao sar sas sja sjj sjr sjs soa soj soo sor sos sr- sra srj sro srr srs ss- ssa ssj sso ssr sss