-er a-a a-c a-t aaa aac aad aae aag aam aao aar aat ac- aca acc acd ace acg acm aco acr act ad- ada adc add ade adg adm ado adr adt aea aec aed aee aeg aem aeo aer aet ag- aga agc agd age agg agm ago agr agt ama amc amd ame amg amm amo amr amt aoa aoc aod aoe aog aom aoo aor aot ar- ara arc ard are arg arm aro arr art at- ata atc atd ate atg atm ato atr att c-- caa cac cad cae cag cam cao car cat cca ccc ccd cce ccg ccm cco ccr cct cda cdc cdd cde cdg cdm cdo cdr cdt ce- cea cec ced cee ceg cem ceo cer cet cga cgc cgd cge cgg cgm cgo cgr cgt cma cmc cmd cme cmg cmm cmo cmr cmt co- coa coc cod coe cog com coo cor cot cra crc crd cre crg crm cro crr crt cta ctc ctd cte ctg ctm cto ctr ctt daa dac dad dae dag dam dao dar dat dca dcc dcd dce dcg dcm dco dcr dct dda ddc ddd dde ddg ddm ddo ddr ddt de- dea dec ded dee deg dem deo der det dga dgc dgd dge dgg dgm dgr dgt dma dmc dmd dme dmg dmm dmo dmr dmt doa doc dod doe dog dom doo dor dot dra drc drd dre drg drm dro drr drt dta dtc dtd dte dtg dtm dto dtr dtt eaa eac ead eae eag eam eao ear eat ec- eca ecc ecd ece ecg ecm eco ecr ect ed- eda edc edd ede edg edm edo edr edt eea eec eed eee eeg eem eeo eer eet ega egc egd ege egg egm ego egr egt em- ema emc emd eme emg emm emo emr emt eo- eoa eoc eod eoe eog eom eoo eor eot era erc erd ere erg erm ero err ert eta etc etd ete etg etm eto etr ett g-d gaa gac gad gae gag gam gao gar gat gca gcc gcd gce gcg gcm gco gcr gct gda gdc gdd gde gdm gdo gdr gdt ge- gea gec ged gee geg gem geo ger get gga ggc ggd ggg ggm ggo ggr ggt gma gmc gmd gme gmg gmm gmo gmr gmt goa goc god goe gog gom goo gor got gra grc grd gre grg grm gro grr grt gta gtc gtd gte gtg gtm gto gtr gtt m-o m-r maa mac mad mae mag mam mao mar mat mc- mca mcc mcd mce mcg mcm mco mcr mct mda mdc mdd mde mdg mdm mdo mdr mdt mea mec med mee meg mem meo mer met mga mgc mgd mge mgm mgo mgr mgt mma mmc mmd mme mmg mmm mmo mmr mmt moa moc mod moe mog mom moo mor mot mra mrc mrd mre mrg mrm mro mrr mrt mta mtc mtd mte mtg mtm mto mtr mtt oaa oac oad oae oag oam oao oar oat oc- oca occ ocd ocg ocm oco ocr oct oda odc odd ode odg odm odo odr odt oea oec oed oee oeg oem oeo oer oet oga ogc ogd oge ogg ogo ogt om- oma omc omd ome omg omm omo omr omt oo- ooa ooc ood oog oom ooo oor oot or- ora orc ord ore org orm oro orr ort ot- ota otc otd ote otg otm oto otr ott ra- raa rac rad rae rag ram rao rar rat rca rcc rcd rce rcg rcm rco rcr rct rda rdc rdd rde rdg rdm rdo rdr rdt re- rea rec red ree reg rem reo rer ret rga rgc rgd rge rgg rgo rgr rgt rma rmc rmd rme rmg rmm rmo rmr rmt roa roc rod roe rog rom roo ror rot rra rrc rrd rrg rrm rrr rrt rta rtc rtd rte rtg rtm rto rtr rtt taa tac tad tae tag tam tao tar tat tca tcc tcd tce tcg tcm tco tcr tct tda tdc tdd tde tdg tdm tdo tdr tdt te- tea tec ted tee teg tem teo ter tet tga tgc tge tgg tgm tgo tgr tgt tma tmc tmd tme tmg tmm tmo tmr tmt to- toa toc tod toe tog tom too tor tot tra trc trd tre trg trm tro trr trt tta ttc ttd tte ttg ttm tto ttr ttt