-er -ey c-- ccc cce ccn cco ccp ccr ccs ce- cec cee cen ceo cep cer ces cey cn- cnc cne cnn cno cnp cnr cns cny co- coc coe con coo cop cor cos coy cpc cpe cpn cpo cpp cpr cps crc cre crn cro crp crr crs cry csc cse csn cso csp csr css csy cyc cye cyn cyo cyp cyr cys ec- ecc ece ecn eco ecr ecs eec eee een eeo eep eer ees eey en- enc ene enn eno enp enr ens eny eo- eoc eoe eon eoo eop eor eos ep- epc epe epn epo epp epr eps erc ere ern ero erp err ers ery es- esc ese esn eso esp esr ess esy eyc eye eyn eyo eyp eyr eys ncc nce ncn nco ncp ncr ncs ne- nec nee nen neo nep ner nes ney nnc nne nnn nno nnp nns no- noc noe non noo nop nor nos noy npc npe npn npo npp npr nps nrc nre nrn nro nrp nrr nrs nry nsc nse nsn nso nsp nsr nss nsy nyc nye nyn nyo nyp nys nyy oc- occ ocn oco ocp ocr ocs oec oee oen oeo oep oer oes oey on- onc one onn ono onp onr ons ony oo- ooc oon ooo oop oor oos op- opc ope opn opo opp opr ops opy or- orc ore orn oro orp orr ors ory os- osc ose osn oso osp osr oss oye oyo oys p-p pcc pce pcn pco pcp pcr pcs pec pee pen peo pep per pes pey pn- pnc pne pnn pno pnp pnr pns pny poc poe pon poo pop por pos poy ppc ppe ppn ppo ppp ppr pps prc pre prn pro prp prr prs pry ps- psc pse psn pso psp psr pss psy py- pyc pye pyn pyo pyr pys rcc rce rcn rco rcp rcr rcs re- rec ree ren reo rep rer res rey rnc rnn rno rnp rnr rns rny roc roe ron roo rop ror ros roy rpc rpe rpn rpo rpp rpr rps rrc rrn rrp rrr rrs rsc rse rsn rso rsp rsr rss ry- ryc rye ryn ryo ryr rys ryy scc sce scn sco scp scr scs se- sec see sen seo sep ser ses sey snc sne snn sno snp snr sns sny soc soe son soo sop sor sos soy spc spe spn spo spp spr sps spy sr- src sre srn sro srp srr srs sry ss- ssc sse ssn sso ssp ssr sss sy- syc sye syn syp syr sys ycc yce yco ycp ycs ycy yec yee yen yeo yep yer yes yey yne ynn ynp yns yny yoc yoe yon yoo yop yor yos yoy ypo yps yrc yre yrn yro yrp yrs ysc yse yso ysp ysr yss ysy yyc yye yys yyy