a-a a-c a-t aaa aac aag aak aan aao aar aas aat ac- aca acc acg ack acn aco acr acs act ag- aga agc agg agk agn ago agr ags agt aka akc akg akk akn ako akr aks an- ana anc ang ank ann ano anr ans ant aoa aoc aog aok aon aoo aor aos aot ar- ara arc arg ark arn aro arr ars art as- asa asc asg ask asn aso asr ass ast at- ata atc atg atn ato atr ats att c-- caa cac cag cak can cao car cas cat cca ccc ccg cck ccn cco ccr ccs cct cga cgc cgg cgn cgo cgr cgs cgt cka ckc cko cks ckt cn- cna cnc cng cnn cno cnr cns cnt co- coa coc cog cok con coo cor cos cot cra crc crg crk crn cro crr crs crt csa csc csg csk csn cso csr css cst cta ctc ctg ctk ctn cto ctr cts ctt gaa gac gag gak gan gao gar gas gat gca gcc gcg gck gcn gco gcr gcs gct gga ggc ggg ggn ggo ggr ggs ggt gka gkn gko gks gkt gna gnc gnn gno gnr gns gnt goa goc gog gok gon goo gor gos got gra grc grg grk grn gro grr grs grt gsa gsc gsg gsk gsn gso gsr gss gst gta gtc gtg gtk gtn gto gtr gts gtt k-t ka- kaa kac kag kak kan kao kar kas kat kca kcc kcg kck kcn kcr kcs kct kga kgc kgo kgs kkc kkk kkn kkr kks kkt kn- kna knc kng knk knn kno knr knt koa koc kog kok kon koo kor kos kot kra krc krg krk krn kro krr krs krt ksa ksc ksg ksk ksn kso ksr kss kst kta ktc ktg ktk ktn kto ktr kts ktt naa nac nag nak nan nao nar nas nat nca ncc ncg nck ncn nco ncr ncs nct nga ngc ngg ngk ngn ngo ngs ngt nka nkc nkk nkn nko nkr nks nkt nna nnc nng nnk nnn nno nns nnt no- noa noc nog nok non noo nor nos not nra nrc nrg nrk nrn nro nrr nrs nrt nsa nsc nsg nsk nsn nso nsr nss nst nta ntc ntg ntk ntn nto ntr nts ntt oaa oac oag oak oan oao oar oas oat oc- oca occ ocg ock ocn oco ocr ocs oct oga ogc ogg ogn ogo ogs ogt oka okc okg okk oko okr oks on- ona onc ong onk onn ono onr ons ont oo- ooa ooc oog ook oon ooo oor oos oot or- ora orc org ork orn oro orr ors ort os- osa osc osg osk osn oso osr oss ost ot- ota otc otg otk otn oto otr ots ott ra- raa rac rag rak ran rao rar ras rat rca rcc rcg rcn rco rcr rcs rct rga rgc rgg rgk rgn rgo rgr rgs rgt rkc rkg rkk rko rks rkt rna rnc rng rnn rno rnr rns rnt roa roc rog rok ron roo ror ros rot rra rrc rrg rrk rrn rrr rrs rrt rsa rsc rsg rsk rsn rso rsr rss rst rta rtc rtg rtk rtn rto rtr rts rtt saa sac sag sak san sao sar sas sat sca scc scg sck scn sco scr scs sct sga sgc sgg sgk sgn sgo sgr sgs sgt sk- ska skc skg skk sko skr sks skt sna snc sng snk snn sno snr sns snt soa soc sog sok son soo sor sos sot sr- sra src srg srk srn sro srr srs srt ss- ssa ssc ssg ssk ssn sso ssr sss sst sta stc stg stk stn sto str sts stt taa tac tag tak tan tao tar tas tat tca tcc tcg tck tcn tco tcr tcs tct tga tgc tgg tgk tgn tgo tgr tgs tgt tka tkc tkg tkk tko tkr tks tkt tna tnc tng tnk tnn tno tnr tns tnt to- toa toc tog tok ton too tor tos tot tra trc trg trk trn tro trr trs trt tsa tsc tsg tsk tsn tso tsr tss tst tta ttc ttg ttk ttn tto ttr tts ttt