-er a-a a-c a-t aaa aac aae aag aan aar aat aau aav ac- aca acc ace acg acn acr act acu acv aea aec aee aeg aen aer aet aeu aev ag- aga agc age agg agn agr agt agu agv an- ana anc ane ang ann anr ant anu anv ar- ara arc are arg arn arr art aru arv at- ata atc ate atg atn atr att atu atv au- aua auc aue aug aun aur aut auv av- ava avc ave avg avn avr avt avu c-- caa cac cae cag can car cat cau cav cca ccc cce ccg ccn ccr cct ccu ccv ce- cea cec cee ceg cen cer cet ceu cev cga cgc cge cgg cgn cgr cgt cgu cgv cn- cna cnc cne cng cnn cnr cnt cnu cnv cra crc cre crg crn crr crt cru crv cta ctc cte ctg ctn ctr ctt ctu ctv cua cuc cue cug cun cur cut cuu cuv cva cvc cve cvg cvn cvr cvt cvu cvv eaa eac eae eag ean ear eat eau eav ec- eca ecc ece ecg ecn ecr ect ecu ecv eea eec eee eeg een eer eet eev ega egc ege egg egn egr egt egu en- ena enc ene eng enn enr ent enu env era erc ere erg ern err ert eru erv eta etc ete etg etn etr ett etu etv eu- eua euc eue eug eun eur eut euv eva evc eve evg evn evr evt evv gaa gac gae gag gan gar gat gau gav gca gcc gce gcg gcn gcr gct gcu ge- gea gec gee geg gen ger get geu gev gga ggc ggg ggn ggr ggt ggu ggv gna gnc gne gnn gnr gnt gnu gnv gra grc gre grg grn grr grt gru grv gta gtc gte gtg gtn gtr gtt gtu gtv gu- gua guc gue gug gun gur gut guu guv gva gvc gve gvg gvn gvr gvt gvu naa nac nae nag nan nar nat nau nav nca ncc nce ncg ncn ncr nct ncu ncv ne- nea nec nee neg nen ner net neu nev nga ngc nge ngg ngn ngt ngu nna nnc nne nng nnn nnt nnu nnv nra nrc nre nrg nrn nrr nrt nru nrv nta ntc nte ntg ntn ntr ntt ntu ntv nua nuc nue nug nun nur nut nuu nuv nva nvc nve nvg nvn nvt nvu nvv ra- raa rac rae rag ran rar rat rau rav rca rcc rce rcg rcn rcr rct rcu rcv re- rea rec ree reg ren rer ret reu rev rga rgc rge rgg rgn rgr rgt rgv rna rnc rng rnn rnr rnt rnu rnv rra rrc rrg rrn rrr rrt rru rta rtc rte rtg rtn rtr rtt rtu rtv rua ruc rue rug run rur rut ruu ruv rva rvc rve rvg rvn rvr rvt rvu rvv taa tac tae tag tan tar tat tau tav tca tcc tce tcg tcn tcr tct tcu tcv te- tea tec tee teg ten ter tet teu tev tga tgc tge tgg tgn tgr tgt tgu tgv tna tnc tne tng tnn tnr tnt tra trc tre trg trn trr trt tru trv tta ttc tte ttg ttn ttr ttt ttu ttv tua tuc tue tug tun tur tut tuu tuv tva tvc tve tvg tvn tvr tvt tvu ua- uaa uac uae uag uan uar uat uau uav uca ucc uce ucg ucn ucr uct ucu ucv uea uec uee ueg uen uer uet uga ugc uge ugg ugn ugr ugt ugu un- una unc une ung unn unr unt unu unv ur- ura urc ure urg urn urr urt uru uta utc ute utn utr utt utu utv uua uuc uue uug uun uur uut uuu uva uvc uve uvu uvv v-a v-e vaa vac vae vag van var vat vau vav vca vcc vce vcn vcr vct vcu vea vec vee veg ven ver vet veu vga vgc vgg vgn vgr vgt vgu vn- vna vng vnr vnu vnv vra vrc vre vrg vrn vrr vrt vru vta vtc vte vtg vtr vtt vtu vtv vue vug vur vut vuv vva vvc vvg vvr vvt vvv