-er -ey a-a a-c aaa aac aae aag aan aao aar aas aay ac- aca acc ace acg acn aco acr acs acy aea aec aee aeg aen aeo aer aes aey ag- aga agc age agg agn ago agr ags agy an- ana anc ane ang ann ano anr ans any aoa aoc aoe aog aon aoo aor aos ar- ara arc are arg arn aro arr ars ary as- asa asc ase asg asn aso asr ass asy ay- aya ayc aye ayn ayo ayr ays c-- caa cac cae cag can cao car cas cay cca ccc cce ccg ccn cco ccr ccs ce- cea cec cee ceg cen ceo cer ces cey cga cgc cge cgg cgn cgo cgr cgs cgy cn- cna cnc cne cng cnn cno cnr cns cny co- coa coc coe cog con coo cor cos coy cra crc cre crg crn cro crr crs cry csa csc cse csg csn cso csr css csy cya cyc cye cyg cyn cyo cyr cys eaa eac eae eag ean eao ear eas ec- eca ecc ece ecg ecn eco ecr ecs eea eec eee eeg een eeo eer ees eey ega egc ege egg egn ego egr egs egy en- ena enc ene eng enn eno enr ens eny eo- eoa eoc eoe eog eon eoo eor eos era erc ere erg ern ero err ers ery es- esa esc ese esg esn eso esr ess esy eya eyc eye eyn eyo eyr eys gaa gac gae gag gan gao gar gas gay gca gcc gce gcg gcn gco gcr gcs ge- gea gec gee geg gen geo ger ges gey gga ggc ggg ggn ggo ggr ggs gna gnc gne gnn gno gnr gns goa goc goe gog gon goo gor gos goy gra grc gre grg grn gro grr grs gry gsa gsc gse gsg gsn gso gsr gss gy- gya gye gyn gyo gyr gys naa nac nae nag nan nao nar nas nay nca ncc nce ncg ncn nco ncr ncs ne- nea nec nee neg nen neo ner nes ney nga ngc nge ngg ngn ngo ngs nna nnc nne nng nnn nno nns no- noa noc noe nog non noo nor nos noy nra nrc nre nrg nrn nro nrr nrs nry nsa nsc nse nsg nsn nso nsr nss nsy nya nyc nye nyg nyn nyo nys nyy oaa oac oae oag oan oao oar oas oc- oca occ ocg ocn oco ocr ocs oea oec oee oeg oen oeo oer oes oey oga ogc oge ogg ogn ogo ogs ogy on- ona onc one ong onn ono onr ons ony oo- ooa ooc oog oon ooo oor oos or- ora orc ore org orn oro orr ors ory os- osa osc ose osg osn oso osr oss oya oye oyo oys ra- raa rac rae rag ran rao rar ras ray rca rcc rce rcg rcn rco rcr rcs re- rea rec ree reg ren reo rer res rey rga rgc rge rgg rgn rgo rgr rgs rna rnc rng rnn rno rnr rns rny roa roc roe rog ron roo ror ros roy rra rrc rrg rrn rrr rrs rsa rsc rse rsg rsn rso rsr rss ry- rya ryc rye ryg ryn ryo ryr rys ryy saa sac sae sag san sao sar sas say sca scc sce scg scn sco scr scs se- sea sec see seg sen seo ser ses sey sga sgc sge sgg sgn sgo sgr sgs sna snc sne sng snn sno snr sns sny soa soc soe sog son soo sor sos soy sr- sra src sre srg srn sro srr srs sry ss- ssa ssc sse ssg ssn sso ssr sss sy- sya syc sye syg syn syr sys yaa yac yae yag yan yao yar yas yay yca ycc yce yco ycs ycy yea yec yee yeg yen yeo yer yes yey yga ygc ygo yna yne yng ynn yns yny yoc yoe yog yon yoo yor yos yoy yra yrc yre yrg yrn yro yrs ysa ysc yse ysg yso ysr yss ysy yyc yye yyg yys yyy