-er a-a a-c a-t aaa aac aae aag aan aao aar aas aat aav ac- aca acc ace acg acn aco acr acs act acv aea aec aee aeg aen aeo aer aes aet aev ag- aga agc age agg agn ago agr ags agt agv an- ana anc ane ang ann ano anr ans ant anv aoa aoc aoe aog aon aoo aor aos aot aov ar- ara arc are arg arn aro arr ars art arv as- asa asc ase asg asn aso asr ass ast asv at- ata atc ate atg atn ato atr ats att atv av- ava avc ave avg avn avo avr avs avt c-- caa cac cae cag can cao car cas cat cav cca ccc cce ccg ccn cco ccr ccs cct ccv ce- cea cec cee ceg cen ceo cer ces cet cev cga cgc cge cgg cgn cgo cgr cgs cgt cgv cn- cna cnc cne cng cnn cno cnr cns cnt cnv co- coa coc coe cog con coo cor cos cot cov cra crc cre crg crn cro crr crs crt crv csa csc cse csg csn cso csr css cst csv cta ctc cte ctg ctn cto ctr cts ctt ctv cva cvc cve cvg cvn cvo cvr cvs cvt cvv eaa eac eae eag ean eao ear eas eat eav ec- eca ecc ece ecg ecn eco ecr ecs ect ecv eea eec eee eeg een eeo eer ees eet eev ega egc ege egg egn ego egr egs egt en- ena enc ene eng enn eno enr ens ent env eo- eoa eoc eoe eog eon eoo eor eos eot era erc ere erg ern ero err ers ert erv es- esa esc ese esg esn eso esr ess est esv eta etc ete etg etn eto etr ets ett etv eva evc eve evg evn evo evr evs evt evv gaa gac gae gag gan gao gar gas gat gav gca gcc gce gcg gcn gco gcr gcs gct ge- gea gec gee geg gen geo ger ges get gev gga ggc ggg ggn ggo ggr ggs ggt ggv gna gnc gne gnn gno gnr gns gnt gnv goa goc goe gog gon goo gor gos got gov gra grc gre grg grn gro grr grs grt grv gsa gsc gse gsg gsn gso gsr gss gst gsv gta gtc gte gtg gtn gto gtr gts gtt gtv gva gvc gve gvg gvn gvo gvr gvs gvt naa nac nae nag nan nao nar nas nat nav nca ncc nce ncg ncn nco ncr ncs nct ncv ne- nea nec nee neg nen neo ner nes net nev nga ngc nge ngg ngn ngo ngs ngt nna nnc nne nng nnn nno nns nnt nnv no- noa noc noe nog non noo nor nos not nov nra nrc nre nrg nrn nro nrr nrs nrt nrv nsa nsc nse nsg nsn nso nsr nss nst nsv nta ntc nte ntg ntn nto ntr nts ntt ntv nva nvc nve nvg nvn nvt nvv oaa oac oae oag oan oao oar oas oat oav oc- oca occ ocg ocn oco ocr ocs oct ocv oea oec oee oeg oen oeo oer oes oet oga ogc oge ogg ogn ogo ogs ogt on- ona onc one ong onn ono onr ons ont oo- ooa ooc oog oon ooo oor oos oot oov or- ora orc ore org orn oro orr ors ort orv os- osa osc ose osg osn oso osr oss ost osv ot- ota otc ote otg otn oto otr ots ott otv ov- ova ovc ove ovo ovs ovv ra- raa rac rae rag ran rao rar ras rat rav rca rcc rce rcg rcn rco rcr rcs rct rcv re- rea rec ree reg ren reo rer res ret rev rga rgc rge rgg rgn rgo rgr rgs rgt rgv rna rnc rng rnn rno rnr rns rnt rnv roa roc roe rog ron roo ror ros rot rov rra rrc rrg rrn rrr rrs rrt rsa rsc rse rsg rsn rso rsr rss rst rsv rta rtc rte rtg rtn rto rtr rts rtt rtv rva rvc rve rvg rvn rvo rvr rvs rvt rvv saa sac sae sag san sao sar sas sat sav sca scc sce scg scn sco scr scs sct scv se- sea sec see seg sen seo ser ses set sev sga sgc sge sgg sgn sgo sgr sgs sgt sgv sna snc sne sng snn sno snr sns snt snv soa soc soe sog son soo sor sos sot sov sr- sra src sre srg srn sro srr srs srt srv ss- ssa ssc sse ssg ssn sso ssr sss sst ssv sta stc ste stg stn sto str sts stt stv sva svc sve svg svn svo svr svs svt svv taa tac tae tag tan tao tar tas tat tav tca tcc tce tcg tcn tco tcr tcs tct tcv te- tea tec tee teg ten teo ter tes tet tev tga tgc tge tgg tgn tgo tgr tgs tgt tgv tna tnc tne tng tnn tno tnr tns tnt to- toa toc toe tog ton too tor tos tot tov tra trc tre trg trn tro trr trs trt trv tsa tsc tse tsg tsn tso tsr tss tst tsv tta ttc tte ttg ttn tto ttr tts ttt ttv tva tvc tve tvg tvn tvo tvr tvs tvt v-a v-e vaa vac vae vag van vao var vas vat vav vca vcc vce vcn vco vcr vcs vct vea vec vee veg ven veo ver ves vet vga vgc vgg vgn vgo vgr vgs vgt vn- vna vng vno vnr vns vnv voa voc voe vog von voo vor vos vot vov vra vrc vre vrg vrn vrr vrs vrt vsa vsc vse vsg vsn vso vsr vss vst vsv vta vtc vte vtg vto vtr vts vtt vtv vva vvc vvg vvo vvr vvs vvt vvv

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