-al -er a-a a-c a-t aaa aac aae aag aak aal aan aar aas aat ac- aca acc ace acg ack acl acn acr acs act aea aec aee aeg aek ael aen aer aes aet ag- aga agc age agg agk agl agn agr ags agt aka akc ake akg akk akl akn akr aks al- ala alc ale alg alk all aln alr als alt an- ana anc ane ang ank anl ann anr ans ant ar- ara arc are arg ark arl arn arr ars art as- asa asc ase asg ask asl asn asr ass ast at- ata atc ate atg atl atn atr ats att c-- caa cac cae cag cak cal can car cas cat cca ccc cce ccg cck ccl ccn ccr ccs cct ce- cea cec cee ceg cek cel cen cer ces cet cga cgc cge cgg cgl cgn cgr cgs cgt cka ckc cks ckt cl- cla clc cle clg clk cll cln clr cls clt cn- cna cnc cne cng cnl cnn cnr cns cnt cra crc cre crg crk crl crn crr crs crt csa csc cse csg csk csl csn csr css cst cta ctc cte ctg ctk ctl ctn ctr cts ctt eaa eac eae eag eak eal ean ear eas eat ec- eca ecc ece ecg eck ecl ecn ecr ecs ect eea eec eee eeg eek eel een eer ees eet ega egc ege egg egl egn egr egs egt eka ekc eke ekg ekl ekr eks ekt ela elc ele elg elk ell eln elr els elt en- ena enc ene eng enk enl enn enr ens ent era erc ere erg erk erl ern err ers ert es- esa esc ese esg esk esl esn esr ess est eta etc ete etg etk etl etn etr ets ett gaa gac gae gag gak gal gan gar gas gat gca gcc gce gcg gck gcl gcn gcr gcs gct ge- gea gec gee geg gek gel gen ger ges get gga ggc ggg ggn ggr ggs ggt gka gkn gks gkt gla glc gle glg glk gll gln glr gls glt gna gnc gne gnl gnn gnr gns gnt gra grc gre grg grk grl grn grr grs grt gsa gsc gse gsg gsk gsl gsn gsr gss gst gta gtc gte gtg gtk gtl gtn gtr gts gtt k-t ka- kaa kac kae kag kak kal kan kar kas kat kca kcc kce kcg kck kcl kcn kcr kcs kct ke- kea kec kee keg kek kel ken ker kes ket kga kgc kgl kgs kkc kke kkk kkl kkn kkr kks kkt kl- kla klc klg klr kls klt kn- kna knc kne kng knk knl knn knr knt kra krc krg krk krl krn krr krs krt ksa ksc kse ksg ksk ksl ksn ksr kss kst kta ktc kte ktg ktk ktl ktn ktr kts ktt la- laa lac lae lag lak lal lan lar las lat lca lcc lce lcg lck lcl lcn lcr lcs lct lea lec lee leg lek lel len ler les let lga lgc lge lgg lgk lgl lgn lgr lgs lgt lka lkg lkl lkr lks lkt lla llc lle llg llk lll lln llr lls llt lna lnc lne lng lnk lnl lnn lnr lns lnt lra lrc lrg lrk lrn lrr lrs lrt lsa lsc lse lsg lsk lsl lsn lsr lss lst lta ltc lte ltg ltk ltl ltr lts ltt naa nac nae nag nak nal nan nar nas nat nca ncc nce ncg nck ncl ncn ncr ncs nct ne- nea nec nee neg nek nel nen ner nes net nga ngc nge ngg ngk ngl ngn ngs ngt nka nkc nke nkk nkn nkr nks nkt nla nlc nle nlg nlk nll nln nlr nls nlt nna nnc nne nng nnk nnl nnn nns nnt nra nrc nre nrg nrk nrl nrn nrr nrs nrt nsa nsc nse nsg nsk nsl nsn nsr nss nst nta ntc nte ntg ntk ntn ntr nts ntt ra- raa rac rae rag rak ral ran rar ras rat rca rcc rce rcg rcl rcn rcr rcs rct re- rea rec ree reg rek rel ren rer res ret rga rgc rge rgg rgk rgn rgr rgs rgt rkc rke rkg rkk rks rkt rla rlc rle rlg rll rln rlr rls rlt rna rnc rng rnn rnr rns rnt rra rrc rrg rrk rrl rrn rrr rrs rrt rsa rsc rse rsg rsk rsl rsn rsr rss rst rta rtc rte rtg rtk rtl rtn rtr rts rtt saa sac sae sag sak sal san sar sas sat sca scc sce scg sck scl scn scr scs sct se- sea sec see seg sek sel sen ser ses set sga sgc sge sgg sgk sgl sgn sgr sgs sgt sk- ska skc ske skg skk skl skr sks skt sla slc sle slg slk sll sln slr sls slt sna snc sne sng snk snl snn snr sns snt sr- sra src sre srg srk srl srn srr srs srt ss- ssa ssc sse ssg ssk ssl ssn ssr sss sst sta stc ste stg stk stl stn str sts stt taa tac tae tag tak tal tan tar tas tat tca tcc tce tcg tck tcl tcn tcr tcs tct te- tea tec tee teg tek tel ten ter tes tet tga tgc tge tgg tgk tgl tgn tgr tgs tgt tka tkc tke tkg tkk tkl tkr tks tkt tla tlc tle tlg tlk tll tln tlr tls tlt tna tnc tne tng tnk tnl tnn tnr tns tnt tra trc tre trg trk trl trn trr trs trt tsa tsc tse tsg tsk tsl tsn tsr tss tst tta ttc tte ttg ttk ttl ttn ttr tts ttt