-al -er a-a a-c a-t aaa aac aad aae aag aal aan aar aat ac- aca acc acd ace acg acl acn acr act ad- ada adc add ade adg adl adn adr adt aea aec aed aee aeg ael aen aer aet ag- aga agc agd age agg agl agn agr agt al- ala alc ald ale alg all aln alr alt an- ana anc and ane ang anl ann anr ant ar- ara arc ard are arg arl arn arr art at- ata atc atd ate atg atl atn atr att c-- caa cac cad cae cag cal can car cat cca ccc ccd cce ccg ccl ccn ccr cct cda cdc cdd cde cdg cdl cdn cdr cdt ce- cea cec ced cee ceg cel cen cer cet cga cgc cgd cge cgg cgl cgn cgr cgt cl- cla clc cld cle clg cll cln clr clt cn- cna cnc cnd cne cng cnl cnn cnr cnt cra crc crd cre crg crl crn crr crt cta ctc ctd cte ctg ctl ctn ctr ctt daa dac dad dae dag dal dan dar dat dca dcc dcd dce dcg dcl dcn dcr dct dda ddc ddd dde ddg ddl ddn ddr ddt de- dea dec ded dee deg del den der det dga dgc dgd dge dgg dgl dgn dgr dgt dl- dla dlc dld dle dlg dll dlr dlt dna dnc dnd dne dng dnl dnn dnr dnt dra drc drd dre drg drl drn drr drt dta dtc dtd dte dtg dtl dtn dtr dtt eaa eac ead eae eag eal ean ear eat ec- eca ecc ecd ece ecg ecl ecn ecr ect ed- eda edc edd ede edg edl edn edr edt eea eec eed eee eeg eel een eer eet ega egc egd ege egg egl egn egr egt ela elc eld ele elg ell eln elr elt en- ena enc end ene eng enl enn enr ent era erc erd ere erg erl ern err ert eta etc etd ete etg etl etn etr ett g-d gaa gac gad gae gag gal gan gar gat gca gcc gcd gce gcg gcl gcn gcr gct gda gdc gdd gde gdl gdn gdr gdt ge- gea gec ged gee geg gel gen ger get gga ggc ggd ggg ggn ggr ggt gla glc gld gle glg gll gln glr glt gna gnc gnd gne gnl gnn gnr gnt gra grc grd gre grg grl grn grr grt gta gtc gtd gte gtg gtl gtn gtr gtt la- laa lac lad lae lag lal lan lar lat lca lcc lcd lce lcg lcl lcn lcr lct lda ldc ldd lde ldg ldl ldn ldr ldt lea lec led lee leg lel len ler let lga lgc lgd lge lgg lgl lgn lgr lgt lla llc lld lle llg lll lln llr llt lna lnc lnd lne lng lnl lnn lnr lnt lra lrc lrd lrg lrn lrr lrt lta ltc ltd lte ltg ltl ltr ltt naa nac nad nae nag nal nan nar nat nca ncc ncd nce ncg ncl ncn ncr nct nda ndc ndd nde ndg ndl ndn ndr ndt ne- nea nec ned nee neg nel nen ner net nga ngc ngd nge ngg ngl ngn ngt nla nlc nld nle nlg nll nln nlr nlt nna nnc nne nng nnl nnn nnt nra nrc nrd nre nrg nrl nrn nrr nrt nta ntc ntd nte ntg ntn ntr ntt ra- raa rac rad rae rag ral ran rar rat rca rcc rcd rce rcg rcl rcn rcr rct rda rdc rdd rde rdg rdl rdn rdr rdt re- rea rec red ree reg rel ren rer ret rga rgc rgd rge rgg rgn rgr rgt rla rlc rld rle rlg rll rln rlr rlt rna rnc rnd rng rnn rnr rnt rra rrc rrd rrg rrl rrn rrr rrt rta rtc rtd rte rtg rtl rtn rtr rtt taa tac tad tae tag tal tan tar tat tca tcc tcd tce tcg tcl tcn tcr tct tda tdc tdd tde tdg tdl tdn tdr tdt te- tea tec ted tee teg tel ten ter tet tga tgc tge tgg tgl tgn tgr tgt tla tlc tld tle tlg tll tln tlr tlt tna tnc tnd tne tng tnl tnn tnr tnt tra trc trd tre trg trl trn trr trt tta ttc ttd tte ttg ttl ttn ttr ttt