-er -ol eee eef eel een eeo eep eer ees ef- efe eff efl efo efp efr efs ele elf ell eln elo elp elr els en- ene enf enl enn eno enp enr ens eo- eoe eof eol eon eoo eop eor eos ep- epe epf epl epn epo epp epr eps ere erf erl ern ero erp err ers es- ese esf esl esn eso esp esr ess fee fef fel fen feo fep fer fes ffe fff ffl ffn ffo ffp ffr ffs fle flf fll fln flo flp flr fls fne fnf fnl fnn fnp fnr fns foe fof fol fon foo fop for fos fpe fpl fpn fpo fpp fpr fps fre frf frl frn fro frp frr frs fse fsf fsl fsn fso fsp fsr fss l-p lee lef lel len leo lep ler les lfe lff lfl lfn lfo lfp lfr lfs lle llf lll lln llo llp llr lls lne lnl lnn lno lnp lnr lns loe lof lol lon loo lop lor los lpe lpf lpl lpn lpo lpp lpr lps lrf lrn lro lrp lrr lrs lse lsf lsl lsn lso lsp lsr lss ne- nee nef nel nen neo nep ner nes nfe nff nfl nfn nfo nfp nfr nfs nle nlf nll nln nlo nlp nlr nls nne nnf nnl nnn nno nnp nns no- noe nof nol non noo nop nor nos npe npf npl npn npo npp npr nps nre nrf nrl nrn nro nrp nrr nrs nse nsf nsl nsn nso nsp nsr nss oee oef oel oen oeo oep oer oes of- ofe off ofl ofn ofo ofp ofr ofs ole olf oll oln olo olp ols on- one onf onl onn ono onp onr ons oo- oof ool oon ooo oop oor oos op- ope opf opl opn opo opp opr ops or- ore orf orl orn oro orp orr ors os- ose osf osl osn oso osp osr oss p-p pee pef pel pen peo pep per pes pfe pff pfl pfn pfo pfp pfr pfs ple plf pll pln plo plp plr pls pn- pne pnf pnl pnn pno pnp pnr pns poe pof pol pon poo pop por pos ppe ppf ppl ppn ppo ppp ppr pps pre prf prl prn pro prp prr prs ps- pse psf psl psn pso psp psr pss re- ree ref rel ren reo rep rer res rfe rff rfl rfn rfo rfp rfr rfs rle rlf rll rln rlo rlp rlr rls rnn rno rnp rnr rns roe rof rol ron roo rop ror ros rpe rpf rpl rpn rpo rpp rpr rps rrf rrl rrn rrp rrr rrs rse rsf rsl rsn rso rsp rsr rss se- see sef sel sen seo sep ser ses sfe sff sfl sfn sfo sfp sfr sfs sle slf sll sln slo slp slr sls sne snf snl snn sno snp snr sns soe sof sol son soo sop sor sos spe spf spl spn spo spp spr sps sr- sre srf srl srn sro srp srr srs ss- sse ssf ssl ssn sso ssp ssr sss