a-a a-c aaa aac aag aam aao aar aas ac- aca acc acg acm aco acr acs ag- aga agc agg agm ago agr ags ama amc amg amm amo amr ams aoa aoc aog aom aoo aor aos ar- ara arc arg arm aro arr ars as- asa asc asg asm aso asr ass c-- caa cac cag cam cao car cas cca ccc ccg ccm cco ccr ccs cga cgc cgg cgm cgo cgr cgs cma cmc cmg cmm cmo cmr cms co- coa coc cog com coo cor cos cra crc crg crm cro crr crs csa csc csg csm cso csr css gaa gac gag gam gao gar gas gca gcc gcg gcm gco gcr gcs gga ggc ggg ggm ggo ggr ggs gma gmc gmg gmm gmo gmr gms goa goc gog gom goo gor gos gra grc grg grm gro grr grs gsa gsc gsg gsm gso gsr gss m-o m-r maa mac mag mam mao mar mas mc- mca mcc mcg mcm mco mcr mcs mga mgc mgm mgo mgr mgs mma mmc mmg mmm mmo mmr mms moa moc mog mom moo mor mos mra mrc mrg mrm mro mrr mrs msa msc msg msm mso msr mss oaa oac oag oam oao oar oas oc- oca occ ocg ocm oco ocr ocs oga ogc ogg ogo ogs om- oma omc omg omm omo omr oms oo- ooa ooc oog oom ooo oor oos or- ora orc org orm oro orr ors os- osa osc osg osm oso osr oss ra- raa rac rag ram rao rar ras rca rcc rcg rcm rco rcr rcs rga rgc rgg rgo rgr rgs rma rmc rmg rmm rmo rmr rms roa roc rog rom roo ror ros rra rrc rrg rrm rrr rrs rsa rsc rsg rsm rso rsr rss saa sac sag sam sao sar sas sca scc scg scm sco scr scs sga sgc sgg sgm sgo sgr sgs sma smc smg smm smo smr sms soa soc sog som soo sor sos sr- sra src srg srm sro srr srs ss- ssa ssc ssg ssm sso ssr sss