-er eee eef eel eep eer ees eet ef- efe eff efi efl efp efr efs eft eie eif eii eil eip eir eis eit ele elf eli ell elp elr els elt ep- epe epf epi epl epp epr eps ept ere erf eri erl erp err ers ert es- ese esf esi esl esp esr ess est ete etf eti etl etp etr ets ett fee fef fei fel fep fer fes fet ffe fff ffi ffl ffp ffr ffs fft fie fif fii fil fip fir fis fit fle flf fli fll flp flr fls flt fpe fpi fpl fpp fpr fps fpt fre frf fri frl frp frr frs frt fse fsf fsi fsl fsp fsr fss fst fte ftf fti ftl ftp ftr fts ftt i-f ie- iee ief iei iel iep ier ies iet ife iff ifi ifl ifp ifr ifs ift iie iif iii iil iip iir iis iit il- ile ilf ili ill ilp ilr ils ilt ipe ipf ipi ipl ipp ipr ips ipt ir- ire irf iri irl irp irr irs irt is- ise isf isi isl isp isr iss ist ite itf iti itl itp its itt l-p lee lef lei lel lep ler les let lfe lff lfi lfl lfp lfr lfs lft lie lif lii lil lip lir lis lit lle llf lli lll llp llr lls llt lpe lpf lpi lpl lpp lpr lps lpt lrf lri lrp lrr lrs lrt lse lsf lsi lsl lsp lsr lss lst lte ltf lti ltl ltp ltr lts ltt p-p pee pef pei pel pep per pes pet pfe pff pfi pfl pfp pfr pfs pft pie pif pii pil pip pir pis pit ple plf pli pll plp plr pls plt ppe ppf ppi ppl ppp ppr pps ppt pre prf pri prl prp prr prs prt ps- pse psf psi psl psp psr pss pst pt- pte ptf pti ptl ptp ptr pts ptt re- ree ref rei rel rep rer res ret rfe rff rfi rfl rfp rfr rfs rft rie rif rii ril rip rir ris rit rle rlf rli rll rlp rlr rls rlt rpe rpf rpi rpl rpp rpr rps rpt rrf rri rrl rrp rrr rrs rrt rse rsf rsi rsl rsp rsr rss rst rte rtf rti rtl rtp rtr rts rtt se- see sef sei sel sep ser ses set sfe sff sfi sfl sfp sfr sfs sft sie sif sii sil sip sir sis sit sle slf sli sll slp slr sls slt spe spf spi spl spp spr sps spt sr- sre srf sri srl srp srr srs srt ss- sse ssf ssi ssl ssp ssr sss sst ste stf sti stl stp str sts stt te- tee tef tei tel tep ter tes tet tfe tff tfi tfl tfp tfr tfs tft tie tif tii til tip tir tis tit tle tlf tli tll tlp tlr tls tlt tpe tpf tpi tpl tpp tpr tps tpt tre trf tri trl trp trr trs trt tse tsf tsi tsl tsp tsr tss tst tte ttf tti ttl ttp ttr tts ttt