-er -th a-a a-c a-t aaa aac aad aae aag aah aao aar aat ac- aca acc acd ace acg ach aco acr act ad- ada adc add ade adg adh ado adr adt aea aec aed aee aeg aeh aeo aer aet ag- aga agc agd age agg agh ago agr agt aha ahc ahd ahe ahg ahh aho ahr aht aoa aoc aod aoe aog aoh aoo aor aot ar- ara arc ard are arg arh aro arr art at- ata atc atd ate atg ath ato atr att c-- caa cac cad cae cag cah cao car cat cca ccc ccd cce ccg cch cco ccr cct cda cdc cdd cde cdg cdh cdo cdr cdt ce- cea cec ced cee ceg ceh ceo cer cet cga cgc cgd cge cgg cgh cgo cgr cgt ch- cha chc chd che chg chh cho chr cht co- coa coc cod coe cog coh coo cor cot cra crc crd cre crg crh cro crr crt cta ctc ctd cte ctg cth cto ctr ctt daa dac dad dae dag dah dao dar dat dca dcc dcd dce dcg dco dcr dct dda ddc ddd dde ddg ddh ddo ddr ddt de- dea dec ded dee deg deh deo der det dga dgc dgd dge dgg dgh dgr dgt dh- dha dhc dhd dhe dhh dho dhr dht doa doc dod doe dog doh doo dor dot dra drc drd dre drg dro drr drt dta dtc dtd dte dtg dth dto dtr dtt eaa eac ead eae eag eah eao ear eat ec- eca ecc ecd ece ecg ech eco ecr ect ed- eda edc edd ede edg edh edo edr edt eea eec eed eee eeg eeo eer eet ega egc egd ege egg egh ego egr egt eha ehc ehd ehe ehg ehh eho ehr eht eo- eoa eoc eod eoe eog eoh eoo eor eot era erc erd ere erg erh ero err ert eta etc etd ete etg eth eto etr ett g-d gaa gac gad gae gag gah gao gar gat gca gcc gcd gce gcg gch gco gcr gct gda gdc gdd gde gdh gdo gdr gdt ge- gea gec ged gee geg geh geo ger get gga ggc ggd ggg ggh ggo ggr ggt gha ghc ghd ghe ghg ghh gho ghr ght goa goc god goe gog goh goo gor got gra grc grd gre grg grh gro grr grt gta gtc gtd gte gtg gth gto gtr gtt haa hac had hae hag hah hao har hat hca hcc hcd hce hcg hch hco hcr hct hda hdc hdd hde hdg hdh hdo hdr hdt he- hea hec hed hee heg heh heo her het hga hgc hge hgg hgh hgo hgr hgt hha hhc hhd hhe hhg hhh hho hhr hht hoa hoc hod hoe hog hoh hoo hor hot hr- hra hrc hrd hre hrg hrh hro hrr hrt hta htc htd hte htg hth hto htr htt oaa oac oad oae oag oah oao oar oat oc- oca occ ocd ocg och oco ocr oct oda odc odd ode odg odh odo odr odt oea oec oed oee oeg oeh oeo oer oet oga ogc ogd oge ogg ogh ogo ogt oha ohc ohd ohe ohg ohh oho ohr oht oo- ooa ooc ood oog ooh ooo oor oot or- ora orc ord ore org orh oro orr ort ot- ota otc otd ote otg oth oto otr ott ra- raa rac rad rae rag rah rao rar rat rca rcc rcd rce rcg rch rco rcr rct rda rdc rdd rde rdg rdh rdo rdr rdt re- rea rec red ree reg reh reo rer ret rga rgc rgd rge rgg rgh rgo rgr rgt rh- rha rhc rhd rhe rhg rhh rho rhr rht roa roc rod roe rog roh roo ror rot rra rrc rrd rrg rrh rrr rrt rta rtc rtd rte rtg rto rtr rtt taa tac tad tae tag tah tao tar tat tca tcc tcd tce tcg tch tco tcr tct tda tdc tdd tde tdg tdh tdo tdr tdt te- tea tec ted tee teg teh teo ter tet tga tgc tge tgg tgh tgo tgr tgt th- tha thc thd the thg thh tho thr tht to- toa toc tod toe tog toh too tor tot tra trc trd tre trg trh tro trr trt tta ttc ttd tte ttg tth tto ttr ttt