-ol eee eef eel eeo eep ees eet ef- efe eff efl efo efp efs eft ele elf ell elo elp els elt eo- eoe eof eol eoo eop eos eot ep- epe epf epl epo epp eps ept es- ese esf esl eso esp ess est ete etf etl eto etp ets ett fee fef fel feo fep fes fet ffe fff ffl ffo ffp ffs fft fle flf fll flo flp fls flt foe fof fol foo fop fos fot fpe fpl fpo fpp fps fpt fse fsf fsl fso fsp fss fst fte ftf ftl fto ftp fts ftt l-p lee lef lel leo lep les let lfe lff lfl lfo lfp lfs lft lle llf lll llo llp lls llt loe lof lol loo lop los lot lpe lpf lpl lpo lpp lps lpt lse lsf lsl lso lsp lss lst lte ltf ltl lto ltp lts ltt oee oef oel oeo oep oes oet of- ofe off ofl ofo ofp ofs oft ole olf oll olo olp ols olt oo- oof ool ooo oop oos oot op- ope opf opl opo opp ops opt os- ose osf osl oso osp oss ost ot- ote otf otl oto otp ots ott p-p pee pef pel peo pep pes pet pfe pff pfl pfo pfp pfs pft ple plf pll plo plp pls plt poe pof pol poo pop pos pot ppe ppf ppl ppo ppp pps ppt ps- pse psf psl pso psp pss pst pt- pte ptf ptl pto ptp pts ptt se- see sef sel seo sep ses set sfe sff sfl sfo sfp sfs sft sle slf sll slo slp sls slt soe sof sol soo sop sos sot spe spf spl spo spp sps spt ss- sse ssf ssl sso ssp sss sst ste stf stl sto stp sts stt te- tee tef tel teo tep tes tet tfe tff tfl tfo tfp tfs tft tle tlf tll tlo tlp tls tlt to- toe tof tol too top tos tot tpe tpf tpl tpo tpp tps tpt tse tsf tsl tso tsp tss tst tte ttf ttl tto ttp tts ttt