-er -ol eee eef eel een eeo eep eer ef- efe eff efl efo efp efr ele elf ell eln elo elp elr en- ene enf enl enn eno enp enr eo- eoe eof eol eon eoo eop eor ep- epe epf epl epn epo epp epr ere erf erl ern ero erp err fee fef fel fen feo fep fer ffe fff ffl ffn ffo ffp ffr fle flf fll fln flo flp flr fne fnf fnl fnn fnp fnr foe fof fol fon foo fop for fpe fpl fpn fpo fpp fpr fre frf frl frn fro frp frr l-p lee lef lel len leo lep ler lfe lff lfl lfn lfo lfp lfr lle llf lll lln llo llp llr lne lnl lnn lno lnp lnr loe lof lol lon loo lop lor lpe lpf lpl lpn lpo lpp lpr lrf lrn lro lrp lrr ne- nee nef nel nen neo nep ner nfe nff nfl nfn nfo nfp nfr nle nlf nll nln nlo nlp nlr nne nnf nnl nnn nno nnp no- noe nof nol non noo nop nor npe npf npl npn npo npp npr nre nrf nrl nrn nro nrp nrr oee oef oel oen oeo oep oer of- ofe off ofl ofn ofo ofp ofr ole olf oll oln olo olp on- one onf onl onn ono onp onr oo- oof ool oon ooo oop oor op- ope opf opl opn opo opp opr or- ore orf orl orn oro orp orr p-p pee pef pel pen peo pep per pfe pff pfl pfn pfo pfp pfr ple plf pll pln plo plp plr pn- pne pnf pnl pnn pno pnp pnr poe pof pol pon poo pop por ppe ppf ppl ppn ppo ppp ppr pre prf prl prn pro prp prr re- ree ref rel ren reo rep rer rfe rff rfl rfn rfo rfp rfr rle rlf rll rln rlo rlp rlr rnn rno rnp rnr roe rof rol ron roo rop ror rpe rpf rpl rpn rpo rpp rpr rrf rrl rrn rrp rrr