-er -ey a-a a-c a-t aaa aac aae aag aao aap aar aat aay ac- aca acc ace acg aco acp acr act acy aea aec aee aeg aeo aep aer aet aey ag- aga agc age agg ago agp agr agt agy aoa aoc aoe aog aoo aop aor aot ap- apa apc ape apg apo app apr apt apy ar- ara arc are arg aro arp arr art ary at- ata atc ate atg ato atp atr att ay- aya ayc aye ayo ayp ayr ayt c-- caa cac cae cag cao cap car cat cay cca ccc cce ccg cco ccp ccr cct ce- cea cec cee ceg ceo cep cer cet cey cga cgc cge cgg cgo cgp cgr cgt cgy co- coa coc coe cog coo cop cor cot coy cpa cpc cpe cpg cpo cpp cpr cpt cra crc cre crg cro crp crr crt cry cta ctc cte ctg cto ctp ctr ctt cty cya cyc cye cyg cyo cyp cyr cyt eaa eac eae eag eao eap ear eat ec- eca ecc ece ecg eco ecr ect eea eec eee eeg eeo eep eer eet eey ega egc ege egg ego egp egr egt egy eo- eoa eoc eoe eog eoo eop eor eot ep- epa epc epe epg epo epp epr ept era erc ere erg ero erp err ert ery eta etc ete etg eto etp etr ett ety eya eyc eye eyo eyp eyr eyt g-p gaa gac gae gag gao gap gar gat gay gca gcc gce gcg gco gcp gcr gct ge- gea gec gee geg geo gep ger get gey gga ggc ggg ggo ggp ggr ggt goa goc goe gog goo gop gor got goy gpa gpc gpe gpg gpo gpp gpr gpt gra grc gre grg gro grp grr grt gry gta gtc gte gtg gto gtp gtr gtt gty gy- gya gye gyo gyp gyr oaa oac oae oag oao oap oar oat oc- oca occ ocg oco ocp ocr oct oea oec oee oeg oeo oep oer oet oey oga ogc oge ogg ogo ogp ogt ogy oo- ooa ooc oog ooo oop oor oot op- opa opc ope opg opo opp opr opt opy or- ora orc ore org oro orp orr ort ory ot- ota otc ote otg oto otp otr ott oya oye oyo p-p paa pac pae pag pao pap par pat pay pca pcc pce pcg pco pcp pcr pct pea pec pee peg peo pep per pet pey pga pgc pge pgg pgo pgp pgr pgt pgy poa poc poe pog poo pop por pot poy ppa ppc ppe ppg ppo ppp ppr ppt pra prc pre prg pro prp prr prt pry pt- pta ptc pte ptg pto ptp ptr ptt pty py- pya pyc pye pyg pyo pyr pyt ra- raa rac rae rag rao rap rar rat ray rca rcc rce rcg rco rcp rcr rct re- rea rec ree reg reo rep rer ret rey rga rgc rge rgg rgo rgp rgr rgt roa roc roe rog roo rop ror rot roy rpa rpc rpe rpg rpo rpp rpr rpt rra rrc rrg rrp rrr rrt rta rtc rte rtg rto rtp rtr rtt rty ry- rya ryc rye ryg ryo ryr ryy taa tac tae tag tao tap tar tat tay tca tcc tce tcg tco tcp tcr tct te- tea tec tee teg teo tep ter tet tey tga tgc tge tgg tgo tgp tgr tgt tgy to- toa toc toe tog too top tor tot toy tpa tpc tpe tpg tpo tpp tpr tpt tra trc tre trg tro trp trr trt try tta ttc tte ttg tto ttp ttr ttt tty tya tyc tye tyg tyo typ tyr tyt yaa yac yae yag yao yap yar yat yay yca ycc yce yco ycp ycy yea yec yee yeg yeo yep yer yet yey yga ygc ygo yoc yoe yog yoo yop yor yot yoy ypa ypg ypo yra yrc yre yrg yro yrp yrt yta ytc yte yto ytp ytr ytt yyc yye yyg yyt yyy