-er -ol eee eef eek eel eeo eep eer ef- efe eff efl efo efp efr eke ekf ekl eko ekp ekr ele elf elk ell elo elp elr eo- eoe eof eok eol eoo eop eor ep- epe epf epl epo epp epr ere erf erk erl ero erp err fee fef fek fel feo fep fer ffe fff ffk ffl ffo ffp ffr fkf fkk fkl fkp fle flf fll flo flp flr foe fof fok fol foo fop for fpe fpk fpl fpo fpp fpr fre frf frk frl fro frp frr ke- kee kef kek kel keo kep ker kff kfo kke kkk kkl kkp kkr kl- klf klo klr koe kof kok kol koo kop kor kpe kpf kpk kpl kpo kpp kpr krf krk krl kro krp krr l-p lee lef lek lel leo lep ler lfe lff lfk lfl lfo lfp lfr lkl lkp lkr lle llf llk lll llo llp llr loe lof lok lol loo lop lor lpe lpf lpk lpl lpo lpp lpr lrf lrk lro lrp lrr oee oef oel oeo oep oer of- ofe off ofl ofo ofp ofr oke okk okl oko okp okr ole olf olk oll olo olp oo- oof ook ool ooo oop oor op- ope opf opk opl opo opp opr or- ore orf ork orl oro orp orr p-p pee pef pek pel peo pep per pfe pff pfk pfl pfo pfp pfr pke pkf pkl pko pkp pkr ple plf plk pll plo plp plr poe pof pok pol poo pop por ppe ppf ppk ppl ppo ppp ppr pre prf prk prl pro prp prr re- ree ref rek rel reo rep rer rfe rff rfk rfl rfo rfp rfr rke rkf rkk rko rkp rle rlf rll rlo rlp rlr roe rof rok rol roo rop ror rpe rpf rpk rpl rpo rpp rpr rrf rrk rrl rrp rrr