-er -ol eee eef eel eeo eep eer ees eet ef- efe eff efl efo efp efr efs eft ele elf ell elo elp elr els elt eo- eoe eof eol eoo eop eor eos eot ep- epe epf epl epo epp epr eps ept ere erf erl ero erp err ers ert es- ese esf esl eso esp esr ess est ete etf etl eto etp etr ets ett fee fef fel feo fep fer fes fet ffe fff ffl ffo ffp ffr ffs fft fle flf fll flo flp flr fls flt foe fof fol foo fop for fos fot fpe fpl fpo fpp fpr fps fpt fre frf frl fro frp frr frs frt fse fsf fsl fso fsp fsr fss fst fte ftf ftl fto ftp ftr fts ftt l-p lee lef lel leo lep ler les let lfe lff lfl lfo lfp lfr lfs lft lle llf lll llo llp llr lls llt loe lof lol loo lop lor los lot lpe lpf lpl lpo lpp lpr lps lpt lrf lro lrp lrr lrs lrt lse lsf lsl lso lsp lsr lss lst lte ltf ltl lto ltp ltr lts ltt oee oef oel oeo oep oer oes oet of- ofe off ofl ofo ofp ofr ofs oft ole olf oll olo olp ols olt oo- oof ool ooo oop oor oos oot op- ope opf opl opo opp opr ops opt or- ore orf orl oro orp orr ors ort os- ose osf osl oso osp osr oss ost ot- ote otf otl oto otp otr ots ott p-p pee pef pel peo pep per pes pet pfe pff pfl pfo pfp pfr pfs pft ple plf pll plo plp plr pls plt poe pof pol poo pop por pos pot ppe ppf ppl ppo ppp ppr pps ppt pre prf prl pro prp prr prs prt ps- pse psf psl pso psp psr pss pst pt- pte ptf ptl pto ptp ptr pts ptt re- ree ref rel reo rep rer res ret rfe rff rfl rfo rfp rfr rfs rft rle rlf rll rlo rlp rlr rls rlt roe rof rol roo rop ror ros rot rpe rpf rpl rpo rpp rpr rps rpt rrf rrl rrp rrr rrs rrt rse rsf rsl rso rsp rsr rss rst rte rtf rtl rto rtp rtr rts rtt se- see sef sel seo sep ser ses set sfe sff sfl sfo sfp sfr sfs sft sle slf sll slo slp slr sls slt soe sof sol soo sop sor sos sot spe spf spl spo spp spr sps spt sr- sre srf srl sro srp srr srs srt ss- sse ssf ssl sso ssp ssr sss sst ste stf stl sto stp str sts stt te- tee tef tel teo tep ter tes tet tfe tff tfl tfo tfp tfr tfs tft tle tlf tll tlo tlp tlr tls tlt to- toe tof tol too top tor tos tot tpe tpf tpl tpo tpp tpr tps tpt tre trf trl tro trp trr trs trt tse tsf tsl tso tsp tsr tss tst tte ttf ttl tto ttp ttr tts ttt