-er -ol eee eef eel eem eeo eer eet ef- efe eff efl efm efo efr eft ele elf ell elm elo elr elt em- eme emf eml emm emo emr emt eo- eoe eof eol eom eoo eor eot ere erf erl erm ero err ert ete etf etl etm eto etr ett fee fef fel fem feo fer fet ffe fff ffl ffm ffo ffr fft fle flf fll flm flo flr flt fme fmf fml fmm fmo fmr fmt foe fof fol fom foo for fot fre frf frl frm fro frr frt fte ftf ftl ftm fto ftr ftt lee lef lel lem leo ler let lfe lff lfl lfm lfo lfr lft lle llf lll llm llo llr llt lme lmf lml lmm lmo lmr lmt loe lof lol lom loo lor lot lrf lrm lro lrr lrt lte ltf ltl ltm lto ltr ltt m-f m-o m-r mee mef mel mem meo mer met mfe mff mfl mfm mfo mfr mft mle mlf mll mlm mlo mlr mlt mme mmf mml mmm mmo mmr mmt moe mof mol mom moo mor mot mre mrf mrl mrm mro mrr mrt mte mtf mtl mtm mto mtr mtt oee oef oel oem oeo oer oet of- ofe off ofl ofm ofo ofr oft ole olf oll olm olo olt om- ome omf oml omm omo omr omt oo- oof ool oom ooo oor oot or- ore orf orl orm oro orr ort ot- ote otf otl otm oto otr ott re- ree ref rel rem reo rer ret rfe rff rfl rfm rfo rfr rft rle rlf rll rlm rlo rlr rlt rme rmf rml rmm rmo rmr rmt roe rof rol rom roo ror rot rrf rrl rrm rrr rrt rte rtf rtl rtm rto rtr rtt te- tee tef tel tem teo ter tet tfe tff tfl tfm tfo tfr tft tle tlf tll tlm tlo tlr tlt tme tmf tml tmm tmo tmr tmt to- toe tof tol tom too tor tot tre trf trl trm tro trr trt tte ttf ttl ttm tto ttr ttt