-er -ey -ic a-a a-c a-i a-t aaa aac aad aae aag aai aar aas aat aay ac- aca acc acd ace acg aci acr acs act acy ad- ada adc add ade adg adi adr ads adt ady aea aec aed aee aeg aei aer aes aet aey ag- aga agc agd age agg agi agr ags agt agy ai- aia aic aid aie aig aii air ais ait aiy ar- ara arc ard are arg ari arr ars art ary as- asa asc asd ase asg asi asr ass ast asy at- ata atc atd ate atg ati atr ats att ay- aya ayc ayd aye ayi ayr ays ayt c-- caa cac cad cae cag cai car cas cat cay cca ccc ccd cce ccg cci ccr ccs cct cda cdc cdd cde cdg cdi cdr cds cdt cdy ce- cea cec ced cee ceg cei cer ces cet cey cga cgc cgd cge cgg cgi cgr cgs cgt cgy ci- cia cic cid cie cig cii cir cis cit cra crc crd cre crg cri crr crs crt cry csa csc csd cse csg csi csr css cst csy cta ctc ctd cte ctg cti ctr cts ctt cty cya cyc cyd cye cyg cyr cys cyt daa dac dad dae dag dai dar das dat day dca dcc dcd dce dcg dci dcr dcs dct dda ddc ddd dde ddg ddi ddr dds ddt ddy de- dea dec ded dee deg dei der des det dey dga dgc dgd dge dgg dgi dgr dgs dgt di- dia dic did die dig dii dir dis dit diy dra drc drd dre drg dri drr drs drt dry dsa dsc dsd dse dsg dsi dsr dss dst dsy dta dtc dtd dte dtg dti dtr dts dtt dty dy- dya dyc dyd dye dyr dys dyy eaa eac ead eae eag eai ear eas eat ec- eca ecc ecd ece ecg eci ecr ecs ect ed- eda edc edd ede edg edi edr eds edt edy eea eec eed eee eeg eer ees eet eey ega egc egd ege egg egi egr egs egt egy eia eic eid eie eig eii eir eis eit era erc erd ere erg eri err ers ert ery es- esa esc esd ese esg esi esr ess est esy eta etc etd ete etg eti etr ets ett ety eya eyc eyd eye eyr eys eyt g-d gaa gac gad gae gag gai gar gas gat gay gca gcc gcd gce gcg gci gcr gcs gct gda gdc gdd gde gdi gdr gds gdt ge- gea gec ged gee geg gei ger ges get gey gga ggc ggd ggg ggi ggr ggs ggt gia gic gid gie gig gii gir gis git giy gra grc grd gre grg gri grr grs grt gry gsa gsc gsd gse gsg gsi gsr gss gst gta gtc gtd gte gtg gti gtr gts gtt gty gy- gya gyd gye gyr gys i-d ia- iaa iac iad iae iag iai iar ias iat ica icc icd ice icg ici icr ics ict icy ida idc idd ide idg idi idr ids idt idy ie- iea iec ied iee ieg iei ier ies iet iey iga igc igd ige igg igi igr igs igt igy iia iic iid iie iii iir iis iit ir- ira irc ird ire irg iri irr irs irt iry is- isa isc isd ise isg isi isr iss ist isy ita itc itd ite itg iti its itt ity iya iyc iye iyr iys iyt iyy ra- raa rac rad rae rag rai rar ras rat ray rca rcc rcd rce rcg rci rcr rcs rct rda rdc rdd rde rdg rdi rdr rds rdt rdy re- rea rec red ree reg rei rer res ret rey rga rgc rgd rge rgg rgi rgr rgs rgt ria ric rid rie rig rii rir ris rit riy rra rrc rrd rrg rri rrr rrs rrt rsa rsc rsd rse rsg rsi rsr rss rst rta rtc rtd rte rtg rti rtr rts rtt rty ry- rya ryc ryd rye ryg ryr rys ryy saa sac sad sae sag sai sar sas sat say sca scc scd sce scg sci scr scs sct sda sdc sdd sde sdg sdi sdr sds sdt sdy se- sea sec sed see seg sei ser ses set sey sga sgc sgd sge sgg sgi sgr sgs sgt sia sic sid sie sig sii sir sis sit sr- sra src srd sre srg sri srr srs srt sry ss- ssa ssc ssd sse ssg ssi ssr sss sst sta stc std ste stg sti str sts stt sty sy- sya syc syd sye syg syi syr sys syt taa tac tad tae tag tai tar tas tat tay tca tcc tcd tce tcg tci tcr tcs tct tda tdc tdd tde tdg tdi tdr tds tdt tdy te- tea tec ted tee teg tei ter tes tet tey tga tgc tge tgg tgi tgr tgs tgt tgy tia tic tid tie tig tii tir tis tit tiy tra trc trd tre trg tri trr trs trt try tsa tsc tsd tse tsg tsi tsr tss tst tsy tta ttc ttd tte ttg tti ttr tts ttt tty tya tyc tyd tye tyg tyr tys tyt yaa yac yad yae yag yai yar yas yat yay yca ycc ycd yce yci ycs ycy yda yde ydg yds ydt ydy yea yec yed yee yeg yei yer yes yet yey yga ygc yid yie yig yii yir yis yit yra yrc yre yrg yrs yrt ysa ysc yse ysg ysi ysr yss yst ysy yta ytc ytd yte ytr yts ytt yyc yye yyg yys yyt yyy