-er -ol eee eef eel eeo eep eer ees eet ef- efe eff efi efl efo efp efr efs eft eie eif eii eil eio eip eir eis eit ele elf eli ell elo elp elr els elt eo- eoe eof eoi eol eoo eop eor eos eot ep- epe epf epi epl epo epp epr eps ept ere erf eri erl ero erp err ers ert es- ese esf esi esl eso esp esr ess est ete etf eti etl eto etp etr ets ett fee fef fei fel feo fep fer fes fet ffe fff ffi ffl ffo ffp ffr ffs fft fie fif fii fil fip fir fis fit fle flf fli fll flo flp flr fls flt foe fof foi fol foo fop for fos fot fpe fpi fpl fpo fpp fpr fps fpt fre frf fri frl fro frp frr frs frt fse fsf fsi fsl fso fsp fsr fss fst fte ftf fti ftl fto ftp ftr fts ftt i-f ie- iee ief iei iel iep ier ies iet ife iff ifi ifl ifo ifp ifr ifs ift iie iif iii iil iio iip iir iis iit il- ile ilf ili ill ilo ilp ilr ils ilt io- ioe iof ioi iol ioo iop ior ios iot ipe ipf ipi ipl ipo ipp ipr ips ipt ir- ire irf iri irl iro irp irr irs irt is- ise isf isi isl iso isp isr iss ist ite itf iti itl ito itp its itt l-p lee lef lei lel leo lep ler les let lfe lff lfi lfl lfo lfp lfr lfs lft lie lif lii lil lio lip lir lis lit lle llf lli lll llo llp llr lls llt loe lof loi lol loo lop lor los lot lpe lpf lpi lpl lpo lpp lpr lps lpt lrf lri lro lrp lrr lrs lrt lse lsf lsi lsl lso lsp lsr lss lst lte ltf lti ltl lto ltp ltr lts ltt o-i oee oef oei oel oeo oep oer oes oet of- ofe off ofi ofl ofo ofp ofr ofs oft oie oif oii oil oio oip oir ois oit ole olf oli oll olo olp ols olt oo- oof ooi ool ooo oop oor oos oot op- ope opf opi opl opo opp opr ops opt or- ore orf ori orl oro orp orr ors ort os- ose osf osi osl oso osp osr oss ost ot- ote otf oti otl oto otp otr ots ott p-p pee pef pei pel peo pep per pes pet pfe pff pfi pfl pfo pfp pfr pfs pft pie pif pii pil pio pip pir pis pit ple plf pli pll plo plp plr pls plt poe pof poi pol poo pop por pos pot ppe ppf ppi ppl ppo ppp ppr pps ppt pre prf pri prl pro prp prr prs prt ps- pse psf psi psl pso psp psr pss pst pt- pte ptf pti ptl pto ptp ptr pts ptt re- ree ref rei rel reo rep rer res ret rfe rff rfi rfl rfo rfp rfr rfs rft rie rif rii ril rio rip rir ris rit rle rlf rli rll rlo rlp rlr rls rlt roe rof roi rol roo rop ror ros rot rpe rpf rpi rpl rpo rpp rpr rps rpt rrf rri rrl rrp rrr rrs rrt rse rsf rsi rsl rso rsp rsr rss rst rte rtf rti rtl rto rtp rtr rts rtt se- see sef sei sel seo sep ser ses set sfe sff sfi sfl sfo sfp sfr sfs sft sie sif sii sil sio sip sir sis sit sle slf sli sll slo slp slr sls slt soe sof soi sol soo sop sor sos sot spe spf spi spl spo spp spr sps spt sr- sre srf sri srl sro srp srr srs srt ss- sse ssf ssi ssl sso ssp ssr sss sst ste stf sti stl sto stp str sts stt te- tee tef tei tel teo tep ter tes tet tfe tff tfi tfl tfo tfp tfr tfs tft tie tif tii til tio tip tir tis tit tle tlf tli tll tlo tlp tlr tls tlt to- toe tof toi tol too top tor tos tot tpe tpf tpi tpl tpo tpp tpr tps tpt tre trf tri trl tro trp trr trs trt tse tsf tsi tsl tso tsp tsr tss tst tte ttf tti ttl tto ttp ttr tts ttt