-er -ey a-a a-c a-t aaa aac aae aag aan aar aat aay ac- aca acc ace acg acn acr act acy aea aec aee aeg aen aer aet aey ag- aga agc age agg agn agr agt agy an- ana anc ane ang ann anr ant any ar- ara arc are arg arn arr art ary at- ata atc ate atg atn atr att ay- aya ayc aye ayn ayr ayt c-- caa cac cae cag can car cat cay cca ccc cce ccg ccn ccr cct ce- cea cec cee ceg cen cer cet cey cga cgc cge cgg cgn cgr cgt cgy cn- cna cnc cne cng cnn cnr cnt cny cra crc cre crg crn crr crt cry cta ctc cte ctg ctn ctr ctt cty cya cyc cye cyg cyn cyr cyt eaa eac eae eag ean ear eat ec- eca ecc ece ecg ecn ecr ect eea eec eee eeg een eer eet eey ega egc ege egg egn egr egt egy en- ena enc ene eng enn enr ent eny era erc ere erg ern err ert ery eta etc ete etg etn etr ett ety eya eyc eye eyn eyr eyt gaa gac gae gag gan gar gat gay gca gcc gce gcg gcn gcr gct ge- gea gec gee geg gen ger get gey gga ggc ggg ggn ggr ggt gna gnc gne gnn gnr gnt gra grc gre grg grn grr grt gry gta gtc gte gtg gtn gtr gtt gty gy- gya gye gyn gyr naa nac nae nag nan nar nat nay nca ncc nce ncg ncn ncr nct ne- nea nec nee neg nen ner net ney nga ngc nge ngg ngn ngt nna nnc nne nng nnn nnt nra nrc nre nrg nrn nrr nrt nry nta ntc nte ntg ntn ntr ntt nya nyc nye nyg nyn nyt nyy ra- raa rac rae rag ran rar rat ray rca rcc rce rcg rcn rcr rct re- rea rec ree reg ren rer ret rey rga rgc rge rgg rgn rgr rgt rna rnc rng rnn rnr rnt rny rra rrc rrg rrn rrr rrt rta rtc rte rtg rtn rtr rtt rty ry- rya ryc rye ryg ryn ryr ryy taa tac tae tag tan tar tat tay tca tcc tce tcg tcn tcr tct te- tea tec tee teg ten ter tet tey tga tgc tge tgg tgn tgr tgt tgy tna tnc tne tng tnn tnr tnt tra trc tre trg trn trr trt try tta ttc tte ttg ttn ttr ttt tty tya tyc tye tyg tyn tyr tyt yaa yac yae yag yan yar yat yay yca ycc yce ycy yea yec yee yeg yen yer yet yey yga ygc yna yne yng ynn yny yra yrc yre yrg yrn yrt yta ytc yte ytn ytr ytt yyc yye yyg yyt yyy