-er eee eef eeo eep eer eew ef- efe eff efo efp efr efw eo- eoe eof eoo eop eor eow ep- epe epf epo epp epr epw ere erf ero erp err erw ewe ewf ewo ewp ewr eww fee fef feo fep fer few ffe fff ffo ffp ffr ffw foe fof foo fop for fow fpe fpo fpp fpr fre frf fro frp frr frw fwe fwf fwo fwp oee oef oeo oep oer of- ofe off ofo ofp ofr ofw oo- oof ooo oop oor oow op- ope opf opo opp opr opw or- ore orf oro orp orr owe owf owo owp oww p-p pee pef peo pep per pew pfe pff pfo pfp pfr poe pof poo pop por pow ppe ppf ppo ppp ppr ppw pre prf pro prp prr prw pwe pwf pwo pwp pwr re- ree ref reo rep rer rew rfe rff rfo rfp rfr rfw roe rof roo rop ror row rpe rpf rpo rpp rpr rpw rrf rrp rrr rwe rwf rwr wee wef weo wep wer wew wfe wff wfo wfp wfr wfw woe wof woo wop wor wow wpe wpf wpo wpp wpr wr- wre wrf wro wrp wrr wrw wwe wwf wwo wwp www