-er -ey c-- ccc ccd cce ccn cco ccp ccr ccs cdc cdd cde cdn cdo cdp cdr cds cdy ce- cec ced cee cen ceo cep cer ces cey cn- cnc cnd cne cnn cno cnp cnr cns cny co- coc cod coe con coo cop cor cos coy cpc cpd cpe cpn cpo cpp cpr cps crc crd cre crn cro crp crr crs cry csc csd cse csn cso csp csr css csy cyc cyd cye cyn cyo cyp cyr cys dcc dcd dce dcn dco dcp dcr dcs ddc ddd dde ddn ddo ddp ddr dds ddy de- dec ded dee den deo dep der des dey dnc dnd dne dnn dno dnp dnr dns dny doc dod doe don doo dop dor dos doy dpc dpd dpe dpn dpo dpp dpr dps drc drd dre drn dro drp drr drs dry dsc dsd dse dsn dso dsp dsr dss dsy dy- dyc dyd dye dyn dyo dyp dyr dys dyy ec- ecc ecd ece ecn eco ecr ecs ed- edc edd ede edn edo edp edr eds edy eec eed eee een eeo eep eer ees eey en- enc end ene enn eno enp enr ens eny eo- eoc eod eoe eon eoo eop eor eos ep- epc epd epe epn epo epp epr eps erc erd ere ern ero erp err ers ery es- esc esd ese esn eso esp esr ess esy eyc eyd eye eyn eyo eyp eyr eys ncc ncd nce ncn nco ncp ncr ncs ndc ndd nde ndn ndo ndp ndr nds ndy ne- nec ned nee nen neo nep ner nes ney nnc nne nnn nno nnp nns no- noc nod noe non noo nop nor nos noy npc npd npe npn npo npp npr nps nrc nrd nre nrn nro nrp nrr nrs nry nsc nsd nse nsn nso nsp nsr nss nsy nyc nyd nye nyn nyo nyp nys nyy oc- occ ocd ocn oco ocp ocr ocs odc odd ode odn odo odp odr ods oec oed oee oen oeo oep oer oes oey on- onc ond one onn ono onp onr ons ony oo- ooc ood oon ooo oop oor oos op- opc opd ope opn opo opp opr ops opy or- orc ord ore orn oro orp orr ors ory os- osc osd ose osn oso osp osr oss oyd oye oyo oys p-p pcc pcd pce pcn pco pcp pcr pcs pdc pdd pde pdn pdo pdp pdr pds pec ped pee pen peo pep per pes pey pn- pnc pnd pne pnn pno pnp pnr pns pny poc pod poe pon poo pop por pos poy ppc ppd ppe ppn ppo ppp ppr pps prc prd pre prn pro prp prr prs pry ps- psc psd pse psn pso psp psr pss psy py- pyc pyd pye pyn pyo pyr pys rcc rcd rce rcn rco rcp rcr rcs rdc rdd rde rdn rdo rdp rdr rds rdy re- rec red ree ren reo rep rer res rey rnc rnd rnn rno rnp rnr rns rny roc rod roe ron roo rop ror ros roy rpc rpd rpe rpn rpo rpp rpr rps rrc rrd rrn rrp rrr rrs rsc rsd rse rsn rso rsp rsr rss ry- ryc ryd rye ryn ryo ryr rys ryy scc scd sce scn sco scp scr scs sdc sdd sde sdn sdo sdp sdr sds sdy se- sec sed see sen seo sep ser ses sey snc snd sne snn sno snp snr sns sny soc sod soe son soo sop sor sos soy spc spd spe spn spo spp spr sps spy sr- src srd sre srn sro srp srr srs sry ss- ssc ssd sse ssn sso ssp ssr sss sy- syc syd sye syn syp syr sys ycc ycd yce yco ycp ycs ycy yde ydn ydo yds ydy yec yed yee yen yeo yep yer yes yey ynd yne ynn ynp yns yny yoc yod yoe yon yoo yop yor yos yoy ypd ypo yps yrc yre yrn yro yrp yrs ysc yse yso ysp ysr yss ysy yyc yye yys yyy