-er -ey eee eef eem eeo eer ees eet eey ef- efe eff efm efo efr efs eft em- eme emf emm emo emr ems emt eo- eoe eof eom eoo eor eos eot ere erf erm ero err ers ert ery es- ese esf esm eso esr ess est esy ete etf etm eto etr ets ett ety eye eym eyo eyr eys eyt fee fef fem feo fer fes fet fey ffe fff ffm ffo ffr ffs fft ffy fme fmf fmm fmo fmr fms fmt foe fof fom foo for fos fot foy fre frf frm fro frr frs frt fry fse fsf fsm fso fsr fss fst fte ftf ftm fto ftr fts ftt fty fy- fye fyo m-f m-o m-r mee mef mem meo mer mes met mey mfe mff mfm mfo mfr mfs mft mfy mme mmf mmm mmo mmr mms mmt moe mof mom moo mor mos mot moy mre mrf mrm mro mrr mrs mrt mry mse msf msm mso msr mss mst msy mte mtf mtm mto mtr mts mtt my- mye myf mym myo myr mys myt oee oef oem oeo oer oes oet oey of- ofe off ofm ofo ofr ofs oft om- ome omf omm omo omr oms omt omy oo- oof oom ooo oor oos oot or- ore orf orm oro orr ors ort ory os- ose osf osm oso osr oss ost ot- ote otf otm oto otr ots ott oye oyo oys re- ree ref rem reo rer res ret rey rfe rff rfm rfo rfr rfs rft rme rmf rmm rmo rmr rms rmt roe rof rom roo ror ros rot roy rrf rrm rrr rrs rrt rse rsf rsm rso rsr rss rst rte rtf rtm rto rtr rts rtt rty ry- rye ryf rym ryo ryr rys ryy se- see sef sem seo ser ses set sey sfe sff sfm sfo sfr sfs sft sme smf smm smo smr sms smt smy soe sof som soo sor sos sot soy sr- sre srf srm sro srr srs srt sry ss- sse ssf ssm sso ssr sss sst ste stf stm sto str sts stt sty sy- sye sym syr sys syt te- tee tef tem teo ter tes tet tey tfe tff tfm tfo tfr tfs tft tme tmf tmm tmo tmr tms tmt tmy to- toe tof tom too tor tos tot toy tre trf trm tro trr trs trt try tse tsf tsm tso tsr tss tst tsy tte ttf ttm tto ttr tts ttt tty tye tyf tym tyo tyr tys tyt yee yef yem yeo yer yes yet yey yfe yff yfm yfr yfs yft yme ymm ymo yms ymt yoe yof yom yoo yor yos yot yoy yre yrf yro yrs yrt yse ysm yso ysr yss yst ysy yte ytf ytm yto ytr yts ytt yye yyf yys yyt yyy