-er -ey -ic a-a a-c a-i a-t aaa aac aae aag aai aar aat aay ac- aca acc ace acg aci acr act acy aea aec aee aeg aei aer aet aey ag- aga agc age agg agi agr agt agy ai- aia aic aie aig aii air ait aiy ar- ara arc are arg ari arr art ary at- ata atc ate atg ati atr att ay- aya ayc aye ayi ayr ayt c-- caa cac cae cag cai car cat cay cca ccc cce ccg cci ccr cct ce- cea cec cee ceg cei cer cet cey cga cgc cge cgg cgi cgr cgt cgy ci- cia cic cie cig cii cir cit cra crc cre crg cri crr crt cry cta ctc cte ctg cti ctr ctt cty cya cyc cye cyg cyr cyt eaa eac eae eag eai ear eat ec- eca ecc ece ecg eci ecr ect eea eec eee eeg eer eet eey ega egc ege egg egi egr egt egy eia eic eie eig eii eir eit era erc ere erg eri err ert ery eta etc ete etg eti etr ett ety eya eyc eye eyr eyt gaa gac gae gag gai gar gat gay gca gcc gce gcg gci gcr gct ge- gea gec gee geg gei ger get gey gga ggc ggg ggi ggr ggt gia gic gie gig gii gir git giy gra grc gre grg gri grr grt gry gta gtc gte gtg gti gtr gtt gty gy- gya gye gyr ia- iaa iac iae iag iai iar iat ica icc ice icg ici icr ict icy ie- iea iec iee ieg iei ier iet iey iga igc ige igg igi igr igt igy iia iic iie iii iir iit ir- ira irc ire irg iri irr irt iry ita itc ite itg iti itt ity iya iyc iye iyr iyt iyy ra- raa rac rae rag rai rar rat ray rca rcc rce rcg rci rcr rct re- rea rec ree reg rei rer ret rey rga rgc rge rgg rgi rgr rgt ria ric rie rig rii rir rit riy rra rrc rrg rri rrr rrt rta rtc rte rtg rti rtr rtt rty ry- rya ryc rye ryg ryr ryy taa tac tae tag tai tar tat tay tca tcc tce tcg tci tcr tct te- tea tec tee teg tei ter tet tey tga tgc tge tgg tgi tgr tgt tgy tia tic tie tig tii tir tit tiy tra trc tre trg tri trr trt try tta ttc tte ttg tti ttr ttt tty tya tyc tye tyg tyr tyt yaa yac yae yag yai yar yat yay yca ycc yce yci ycy yea yec yee yeg yei yer yet yey yga ygc yie yig yii yir yit yra yrc yre yrg yrt yta ytc yte ytr ytt yyc yye yyg yyt yyy