-al -er -th a-a a-c a-t aaa aac aae aag aah aal aar aas aat ac- aca acc ace acg ach acl acr acs act aea aec aee aeg aeh ael aer aes aet ag- aga agc age agg agh agl agr ags agt aha ahc ahe ahg ahh ahl ahr ahs aht al- ala alc ale alg alh all alr als alt ar- ara arc are arg arh arl arr ars art as- asa asc ase asg ash asl asr ass ast at- ata atc ate atg ath atl atr ats att c-- caa cac cae cag cah cal car cas cat cca ccc cce ccg cch ccl ccr ccs cct ce- cea cec cee ceg ceh cel cer ces cet cga cgc cge cgg cgh cgl cgr cgs cgt ch- cha chc che chg chh chl chr chs cht cl- cla clc cle clg clh cll clr cls clt cra crc cre crg crh crl crr crs crt csa csc cse csg csh csl csr css cst cta ctc cte ctg cth ctl ctr cts ctt eaa eac eae eag eah eal ear eas eat ec- eca ecc ece ecg ech ecl ecr ecs ect eea eec eee eeg eel eer ees eet ega egc ege egg egh egl egr egs egt eha ehc ehe ehg ehh ehl ehr ehs eht ela elc ele elg elh ell elr els elt era erc ere erg erh erl err ers ert es- esa esc ese esg esh esl esr ess est eta etc ete etg eth etl etr ets ett gaa gac gae gag gah gal gar gas gat gca gcc gce gcg gch gcl gcr gcs gct ge- gea gec gee geg geh gel ger ges get gga ggc ggg ggh ggr ggs ggt gha ghc ghe ghg ghh ghl ghr ghs ght gla glc gle glg glh gll glr gls glt gra grc gre grg grh grl grr grs grt gsa gsc gse gsg gsl gsr gss gst gta gtc gte gtg gth gtl gtr gts gtt haa hac hae hag hah hal har has hat hca hcc hce hcg hch hcl hcr hcs hct he- hea hec hee heg heh hel her hes het hga hgc hge hgg hgh hgl hgr hgs hgt hha hhc hhe hhg hhh hhl hhr hhs hht hla hlc hle hlg hlh hll hlr hls hlt hr- hra hrc hre hrg hrh hrl hrr hrs hrt hsa hsc hse hsg hsh hsl hsr hss hst hta htc hte htg hth htl htr hts htt la- laa lac lae lag lah lal lar las lat lca lcc lce lcg lch lcl lcr lcs lct lea lec lee leg leh lel ler les let lga lgc lge lgg lgh lgl lgr lgs lgt lha lhc lhh lhr lhs lht lla llc lle llg lll llr lls llt lra lrc lrg lrh lrr lrs lrt lsa lsc lse lsg lsh lsl lsr lss lst lta ltc lte ltg lth ltl ltr lts ltt ra- raa rac rae rag rah ral rar ras rat rca rcc rce rcg rch rcl rcr rcs rct re- rea rec ree reg reh rel rer res ret rga rgc rge rgg rgh rgr rgs rgt rh- rha rhc rhe rhg rhh rhl rhr rhs rht rla rlc rle rlg rlh rll rlr rls rlt rra rrc rrg rrh rrl rrr rrs rrt rsa rsc rse rsg rsh rsl rsr rss rst rta rtc rte rtg rtl rtr rts rtt saa sac sae sag sah sal sar sas sat sca scc sce scg sch scl scr scs sct se- sea sec see seg seh sel ser ses set sga sgc sge sgg sgh sgl sgr sgs sgt sh- sha shc she shg shh shl shr shs sht sla slc sle slg slh sll slr sls slt sr- sra src sre srg srh srl srr srs srt ss- ssa ssc sse ssg ssh ssl ssr sss sst sta stc ste stg sth stl str sts stt taa tac tae tag tah tal tar tas tat tca tcc tce tcg tch tcl tcr tcs tct te- tea tec tee teg teh tel ter tes tet tga tgc tge tgg tgh tgl tgr tgs tgt th- tha thc the thg thh thl thr ths tht tla tlc tle tlg tlh tll tlr tls tlt tra trc tre trg trh trl trr trs trt tsa tsc tse tsg tsh tsl tsr tss tst tta ttc tte ttg tth ttl ttr tts ttt