-er -th a-a a-c a-t aaa aac aad aae aag aah aar aas aat ac- aca acc acd ace acg ach acr acs act ad- ada adc add ade adg adh adr ads adt aea aec aed aee aeg aeh aer aes aet ag- aga agc agd age agg agh agr ags agt aha ahc ahd ahe ahg ahh ahr ahs aht ar- ara arc ard are arg arh arr ars art as- asa asc asd ase asg ash asr ass ast at- ata atc atd ate atg ath atr ats att c-- caa cac cad cae cag cah car cas cat cca ccc ccd cce ccg cch ccr ccs cct cda cdc cdd cde cdg cdh cdr cds cdt ce- cea cec ced cee ceg ceh cer ces cet cga cgc cgd cge cgg cgh cgr cgs cgt ch- cha chc chd che chg chh chr chs cht cra crc crd cre crg crh crr crs crt csa csc csd cse csg csh csr css cst cta ctc ctd cte ctg cth ctr cts ctt daa dac dad dae dag dah dar das dat dca dcc dcd dce dcg dcr dcs dct dda ddc ddd dde ddg ddh ddr dds ddt de- dea dec ded dee deg deh der des det dga dgc dgd dge dgg dgh dgr dgs dgt dh- dha dhc dhd dhe dhh dhr dhs dht dra drc drd dre drg drr drs drt dsa dsc dsd dse dsg dsh dsr dss dst dta dtc dtd dte dtg dth dtr dts dtt eaa eac ead eae eag eah ear eas eat ec- eca ecc ecd ece ecg ech ecr ecs ect ed- eda edc edd ede edg edh edr eds edt eea eec eed eee eeg eer ees eet ega egc egd ege egg egh egr egs egt eha ehc ehd ehe ehg ehh ehr ehs eht era erc erd ere erg erh err ers ert es- esa esc esd ese esg esh esr ess est eta etc etd ete etg eth etr ets ett g-d gaa gac gad gae gag gah gar gas gat gca gcc gcd gce gcg gch gcr gcs gct gda gdc gdd gde gdh gdr gds gdt ge- gea gec ged gee geg geh ger ges get gga ggc ggd ggg ggh ggr ggs ggt gha ghc ghd ghe ghg ghh ghr ghs ght gra grc grd gre grg grh grr grs grt gsa gsc gsd gse gsg gsr gss gst gta gtc gtd gte gtg gth gtr gts gtt haa hac had hae hag hah har has hat hca hcc hcd hce hcg hch hcr hcs hct hda hdc hdd hde hdg hdh hdr hds hdt he- hea hec hed hee heg heh her hes het hga hgc hge hgg hgh hgr hgs hgt hha hhc hhd hhe hhg hhh hhr hhs hht hr- hra hrc hrd hre hrg hrh hrr hrs hrt hsa hsc hsd hse hsg hsh hsr hss hst hta htc htd hte htg hth htr hts htt ra- raa rac rad rae rag rah rar ras rat rca rcc rcd rce rcg rch rcr rcs rct rda rdc rdd rde rdg rdh rdr rds rdt re- rea rec red ree reg reh rer res ret rga rgc rgd rge rgg rgh rgr rgs rgt rh- rha rhc rhd rhe rhg rhh rhr rhs rht rra rrc rrd rrg rrh rrr rrs rrt rsa rsc rsd rse rsg rsh rsr rss rst rta rtc rtd rte rtg rtr rts rtt saa sac sad sae sag sah sar sas sat sca scc scd sce scg sch scr scs sct sda sdc sdd sde sdg sdh sdr sds sdt se- sea sec sed see seg seh ser ses set sga sgc sgd sge sgg sgh sgr sgs sgt sh- sha shc shd she shg shh shr shs sht sr- sra src srd sre srg srh srr srs srt ss- ssa ssc ssd sse ssg ssh ssr sss sst sta stc std ste stg sth str sts stt taa tac tad tae tag tah tar tas tat tca tcc tcd tce tcg tch tcr tcs tct tda tdc tdd tde tdg tdh tdr tds tdt te- tea tec ted tee teg teh ter tes tet tga tgc tge tgg tgh tgr tgs tgt th- tha thc thd the thg thh thr ths tht tra trc trd tre trg trh trr trs trt tsa tsc tsd tse tsg tsh tsr tss tst tta ttc ttd tte ttg tth ttr tts ttt