-er -ey a-a a-c aaa aac aae aag aao aap aar aas aay ac- aca acc ace acg aco acp acr acs acy aea aec aee aeg aeo aep aer aes aey ag- aga agc age agg ago agp agr ags agy aoa aoc aoe aog aoo aop aor aos ap- apa apc ape apg apo app apr aps apy ar- ara arc are arg aro arp arr ars ary as- asa asc ase asg aso asp asr ass asy ay- aya ayc aye ayo ayp ayr ays c-- caa cac cae cag cao cap car cas cay cca ccc cce ccg cco ccp ccr ccs ce- cea cec cee ceg ceo cep cer ces cey cga cgc cge cgg cgo cgp cgr cgs cgy co- coa coc coe cog coo cop cor cos coy cpa cpc cpe cpg cpo cpp cpr cps cra crc cre crg cro crp crr crs cry csa csc cse csg cso csp csr css csy cya cyc cye cyg cyo cyp cyr cys eaa eac eae eag eao eap ear eas ec- eca ecc ece ecg eco ecr ecs eea eec eee eeg eeo eep eer ees eey ega egc ege egg ego egp egr egs egy eo- eoa eoc eoe eog eoo eop eor eos ep- epa epc epe epg epo epp epr eps era erc ere erg ero erp err ers ery es- esa esc ese esg eso esp esr ess esy eya eyc eye eyo eyp eyr eys g-p gaa gac gae gag gao gap gar gas gay gca gcc gce gcg gco gcp gcr gcs ge- gea gec gee geg geo gep ger ges gey gga ggc ggg ggo ggp ggr ggs goa goc goe gog goo gop gor gos goy gpa gpc gpe gpg gpo gpp gpr gps gra grc gre grg gro grp grr grs gry gsa gsc gse gsg gso gsp gsr gss gy- gya gye gyo gyp gyr gys oaa oac oae oag oao oap oar oas oc- oca occ ocg oco ocp ocr ocs oea oec oee oeg oeo oep oer oes oey oga ogc oge ogg ogo ogp ogs ogy oo- ooa ooc oog ooo oop oor oos op- opa opc ope opg opo opp opr ops opy or- ora orc ore org oro orp orr ors ory os- osa osc ose osg oso osp osr oss oya oye oyo oys p-p paa pac pae pag pao pap par pas pay pca pcc pce pcg pco pcp pcr pcs pea pec pee peg peo pep per pes pey pga pgc pge pgg pgo pgp pgr pgs pgy poa poc poe pog poo pop por pos poy ppa ppc ppe ppg ppo ppp ppr pps pra prc pre prg pro prp prr prs pry ps- psa psc pse psg pso psp psr pss psy py- pya pyc pye pyg pyo pyr pys ra- raa rac rae rag rao rap rar ras ray rca rcc rce rcg rco rcp rcr rcs re- rea rec ree reg reo rep rer res rey rga rgc rge rgg rgo rgp rgr rgs roa roc roe rog roo rop ror ros roy rpa rpc rpe rpg rpo rpp rpr rps rra rrc rrg rrp rrr rrs rsa rsc rse rsg rso rsp rsr rss ry- rya ryc rye ryg ryo ryr rys ryy saa sac sae sag sao sap sar sas say sca scc sce scg sco scp scr scs se- sea sec see seg seo sep ser ses sey sga sgc sge sgg sgo sgp sgr sgs soa soc soe sog soo sop sor sos soy spa spc spe spg spo spp spr sps spy sr- sra src sre srg sro srp srr srs sry ss- ssa ssc sse ssg sso ssp ssr sss sy- sya syc sye syg syp syr sys yaa yac yae yag yao yap yar yas yay yca ycc yce yco ycp ycs ycy yea yec yee yeg yeo yep yer yes yey yga ygc ygo yoc yoe yog yoo yop yor yos yoy ypa ypg ypo yps yra yrc yre yrg yro yrp yrs ysa ysc yse ysg yso ysp ysr yss ysy yyc yye yyg yys yyy