-er -ey c-- ccc cce ccf ccm cco ccr ccs ce- cec cee cef cem ceo cer ces cey cfc cfe cff cfm cfo cfr cfs cmc cme cmf cmm cmo cmr cms cmy co- coc coe cof com coo cor cos coy crc cre crf crm cro crr crs cry csc cse csf csm cso csr css csy cyc cye cyf cym cyo cyr cys ec- ecc ece ecf ecm eco ecr ecs eec eee eef eem eeo eer ees eey ef- efc efe eff efm efo efr efs em- emc eme emf emm emo emr ems eo- eoc eoe eof eom eoo eor eos erc ere erf erm ero err ers ery es- esc ese esf esm eso esr ess esy eyc eye eym eyo eyr eys fcc fce fcf fcm fco fcr fcs fcy fec fee fef fem feo fer fes fey ffc ffe fff ffm ffo ffr ffs ffy fmc fme fmf fmm fmo fmr fms foc foe fof fom foo for fos foy frc fre frf frm fro frr frs fry fsc fse fsf fsm fso fsr fss fy- fyc fye fyo m-f m-o m-r mc- mcc mce mcf mcm mco mcr mcs mec mee mef mem meo mer mes mey mfc mfe mff mfm mfo mfr mfs mfy mmc mme mmf mmm mmo mmr mms moc moe mof mom moo mor mos moy mrc mre mrf mrm mro mrr mrs mry msc mse msf msm mso msr mss msy my- myc mye myf mym myo myr mys oc- occ ocf ocm oco ocr ocs oec oee oef oem oeo oer oes oey of- ofc ofe off ofm ofo ofr ofs om- omc ome omf omm omo omr oms omy oo- ooc oof oom ooo oor oos or- orc ore orf orm oro orr ors ory os- osc ose osf osm oso osr oss oye oyo oys rcc rce rcf rcm rco rcr rcs re- rec ree ref rem reo rer res rey rfc rfe rff rfm rfo rfr rfs rmc rme rmf rmm rmo rmr rms roc roe rof rom roo ror ros roy rrc rrf rrm rrr rrs rsc rse rsf rsm rso rsr rss ry- ryc rye ryf rym ryo ryr rys ryy scc sce scf scm sco scr scs se- sec see sef sem seo ser ses sey sfc sfe sff sfm sfo sfr sfs smc sme smf smm smo smr sms smy soc soe sof som soo sor sos soy sr- src sre srf srm sro srr srs sry ss- ssc sse ssf ssm sso ssr sss sy- syc sye sym syr sys ycc yce ycf yco ycs ycy yec yee yef yem yeo yer yes yey yfc yfe yff yfm yfr yfs ymc yme ymm ymo yms yoc yoe yof yom yoo yor yos yoy yrc yre yrf yro yrs ysc yse ysm yso ysr yss ysy yyc yye yyf yys yyy