a-a a-c aaa aac aag aar aas aau ac- aca acc acg acr acs acu ag- aga agc agg agr ags agu ar- ara arc arg arr ars aru as- asa asc asg asr ass asu au- aua auc aug aur aus c-- caa cac cag car cas cau cca ccc ccg ccr ccs ccu cga cgc cgg cgr cgs cgu cra crc crg crr crs cru csa csc csg csr css csu cua cuc cug cur cus cuu gaa gac gag gar gas gau gca gcc gcg gcr gcs gcu gga ggc ggg ggr ggs ggu gra grc grg grr grs gru gsa gsc gsg gsr gss gsu gu- gua guc gug gur gus guu ra- raa rac rag rar ras rau rca rcc rcg rcr rcs rcu rga rgc rgg rgr rgs rra rrc rrg rrr rrs rru rsa rsc rsg rsr rss rsu rua ruc rug rur rus ruu saa sac sag sar sas sau sca scc scg scr scs scu sga sgc sgg sgr sgs sgu sr- sra src srg srr srs ss- ssa ssc ssg ssr sss ssu sua suc sug sur sus suu ua- uaa uac uag uar uas uau uca ucc ucg ucr ucs ucu uga ugc ugg ugr ugs ugu ur- ura urc urg urr urs uru usa usc usg usr uss usu uua uuc uug uur uus uuu