-er -ey c-- ccc cce ccg ccn cco ccr ccs ce- cec cee ceg cen ceo cer ces cey cgc cge cgg cgn cgo cgr cgs cgy cn- cnc cne cng cnn cno cnr cns cny co- coc coe cog con coo cor cos coy crc cre crg crn cro crr crs cry csc cse csg csn cso csr css csy cyc cye cyg cyn cyo cyr cys ec- ecc ece ecg ecn eco ecr ecs eec eee eeg een eeo eer ees eey egc ege egg egn ego egr egs egy en- enc ene eng enn eno enr ens eny eo- eoc eoe eog eon eoo eor eos erc ere erg ern ero err ers ery es- esc ese esg esn eso esr ess esy eyc eye eyn eyo eyr eys gcc gce gcg gcn gco gcr gcs ge- gec gee geg gen geo ger ges gey ggc ggg ggn ggo ggr ggs gnc gne gnn gno gnr gns goc goe gog gon goo gor gos goy grc gre grg grn gro grr grs gry gsc gse gsg gsn gso gsr gss gy- gye gyn gyo gyr gys ncc nce ncg ncn nco ncr ncs ne- nec nee neg nen neo ner nes ney ngc nge ngg ngn ngo ngs nnc nne nng nnn nno nns no- noc noe nog non noo nor nos noy nrc nre nrg nrn nro nrr nrs nry nsc nse nsg nsn nso nsr nss nsy nyc nye nyg nyn nyo nys nyy oc- occ ocg ocn oco ocr ocs oec oee oeg oen oeo oer oes oey ogc oge ogg ogn ogo ogs ogy on- onc one ong onn ono onr ons ony oo- ooc oog oon ooo oor oos or- orc ore org orn oro orr ors ory os- osc ose osg osn oso osr oss oye oyo oys rcc rce rcg rcn rco rcr rcs re- rec ree reg ren reo rer res rey rgc rge rgg rgn rgo rgr rgs rnc rng rnn rno rnr rns rny roc roe rog ron roo ror ros roy rrc rrg rrn rrr rrs rsc rse rsg rsn rso rsr rss ry- ryc rye ryg ryn ryo ryr rys ryy scc sce scg scn sco scr scs se- sec see seg sen seo ser ses sey sgc sge sgg sgn sgo sgr sgs snc sne sng snn sno snr sns sny soc soe sog son soo sor sos soy sr- src sre srg srn sro srr srs sry ss- ssc sse ssg ssn sso ssr sss sy- syc sye syg syn syr sys ycc yce yco ycs ycy yec yee yeg yen yeo yer yes yey ygc ygo yne yng ynn yns yny yoc yoe yog yon yoo yor yos yoy yrc yre yrg yrn yro yrs ysc yse ysg yso ysr yss ysy yyc yye yyg yys yyy