-er eee eef eel eem eer ees eet ef- efe eff efi efl efm efr efs eft eie eif eii eil eim eir eis eit ele elf eli ell elm elr els elt em- eme emf emi eml emm emr ems emt ere erf eri erl erm err ers ert es- ese esf esi esl esm esr ess est ete etf eti etl etm etr ets ett fee fef fei fel fem fer fes fet ffe fff ffi ffl ffm ffr ffs fft fie fif fii fil fim fir fis fit fle flf fli fll flm flr fls flt fme fmf fmi fml fmm fmr fms fmt fre frf fri frl frm frr frs frt fse fsf fsi fsl fsm fsr fss fst fte ftf fti ftl ftm ftr fts ftt i-f ie- iee ief iei iel iem ier ies iet ife iff ifi ifl ifm ifr ifs ift iie iif iii iil iim iir iis iit il- ile ilf ili ill ilm ilr ils ilt im- ime imf imi iml imm ims imt ir- ire irf iri irl irm irr irs irt is- ise isf isi isl ism isr iss ist ite itf iti itl itm its itt lee lef lei lel lem ler les let lfe lff lfi lfl lfm lfr lfs lft lie lif lii lil lim lir lis lit lle llf lli lll llm llr lls llt lme lmf lmi lml lmm lmr lms lmt lrf lri lrm lrr lrs lrt lse lsf lsi lsl lsm lsr lss lst lte ltf lti ltl ltm ltr lts ltt m-f m-r mee mef mei mel mem mer mes met mfe mff mfi mfl mfm mfr mfs mft mi- mie mif mii mil mim mir mis mit mle mlf mli mll mlm mlr mls mlt mme mmf mmi mml mmm mmr mms mmt mre mrf mri mrl mrm mrr mrs mrt mse msf msi msl msm msr mss mst mte mtf mti mtl mtm mtr mts mtt re- ree ref rei rel rem rer res ret rfe rff rfi rfl rfm rfr rfs rft rie rif rii ril rim rir ris rit rle rlf rli rll rlm rlr rls rlt rme rmf rmi rml rmm rmr rms rmt rrf rri rrl rrm rrr rrs rrt rse rsf rsi rsl rsm rsr rss rst rte rtf rti rtl rtm rtr rts rtt se- see sef sei sel sem ser ses set sfe sff sfi sfl sfm sfr sfs sft sie sif sii sil sim sir sis sit sle slf sli sll slm slr sls slt sme smf smi sml smm smr sms smt sr- sre srf sri srl srm srr srs srt ss- sse ssf ssi ssl ssm ssr sss sst ste stf sti stl stm str sts stt te- tee tef tei tel tem ter tes tet tfe tff tfi tfl tfm tfr tfs tft tie tif tii til tim tir tis tit tle tlf tli tll tlm tlr tls tlt tme tmf tmi tml tmm tmr tms tmt tre trf tri trl trm trr trs trt tse tsf tsi tsl tsm tsr tss tst tte ttf tti ttl ttm ttr tts ttt