-er -ol eee eef eek eel eem eeo eer eet ef- efe eff efl efm efo efr eft eke ekf ekl eko ekr ekt ele elf elk ell elm elo elr elt em- eme emf emk eml emm emo emr emt eo- eoe eof eok eol eom eoo eor eot ere erf erk erl erm ero err ert ete etf etk etl etm eto etr ett fee fef fek fel fem feo fer fet ffe fff ffk ffl ffm ffo ffr fft fkf fkk fkl fkm fkt fle flf fll flm flo flr flt fme fmf fml fmm fmo fmr fmt foe fof fok fol fom foo for fot fre frf frk frl frm fro frr frt fte ftf ftk ftl ftm fto ftr ftt k-t ke- kee kef kek kel kem keo ker ket kff kfm kfo kke kkk kkl kkm kkr kkt kl- klf klm klo klr klt kme kmf kmk kml kmm kmo kmt koe kof kok kol kom koo kor kot krf krk krl kro krr krt kte ktf ktk ktl ktm kto ktr ktt lee lef lek lel lem leo ler let lfe lff lfk lfl lfm lfo lfr lft lkl lkr lkt lle llf llk lll llm llo llr llt lme lmf lmk lml lmm lmo lmr lmt loe lof lok lol lom loo lor lot lrf lrk lrm lro lrr lrt lte ltf ltk ltl ltm lto ltr ltt m-f m-o m-r mee mef mek mel mem meo mer met mfe mff mfl mfm mfo mfr mft mke mkk mkl mkm mko mkr mkt mle mlf mlk mll mlm mlo mlr mlt mme mmf mmk mml mmm mmo mmr mmt moe mof mok mol mom moo mor mot mre mrf mrk mrl mrm mro mrr mrt mte mtf mtk mtl mtm mto mtr mtt oee oef oel oem oeo oer oet of- ofe off ofl ofm ofo ofr oft oke okk okl oko okr ole olf olk oll olm olo olt om- ome omf oml omm omo omr omt oo- oof ook ool oom ooo oor oot or- ore orf ork orl orm oro orr ort ot- ote otf otk otl otm oto otr ott re- ree ref rek rel rem reo rer ret rfe rff rfk rfl rfm rfo rfr rft rke rkf rkk rkm rko rkt rle rlf rll rlm rlo rlr rlt rme rmf rml rmm rmo rmr rmt roe rof rok rol rom roo ror rot rrf rrk rrl rrm rrr rrt rte rtf rtk rtl rtm rto rtr rtt te- tee tef tek tel tem teo ter tet tfe tff tfk tfl tfm tfo tfr tft tke tkk tkl tkm tko tkr tkt tle tlf tlk tll tlm tlo tlr tlt tme tmf tmk tml tmm tmo tmr tmt to- toe tof tok tol tom too tor tot tre trf trk trl trm tro trr trt tte ttf ttk ttl ttm tto ttr ttt