a-a a-b aaa aab aaj aar aas ab- aba abb abj abr abs aja ajb ajj ajr ajs ar- ara arb arj arr ars as- asa asb asj asr ass baa bab baj bar bas bba bbb bbr bbs bja bjj bjr bjs bra brb brj brr brs bsa bsb bsj bsr bss jaa jab jaj jar jas jba jbj jbr jbs jja jjb jjj jjr jjs jra jrb jrr jrs jsa jsb jsj jsr jss ra- raa rab raj rar ras rba rbb rbr rbs rja rjr rra rrb rrr rrs rsa rsb rsj rsr rss saa sab saj sar sas sba sbb sbj sbr sbs sja sjb sjj sjr sjs sr- sra srb srj srr srs ss- ssa ssb ssj ssr sss