-er -up eee eef eeo eep eer ef- efe eff efo efp efr eo- eoe eof eoo eop eor eou ep- epe epf epo epp epr epu ere erf ero erp err eru eu- eue euf eup eur fee fef feo fep fer feu ffe fff ffo ffp ffr ffu foe fof foo fop for fou fpe fpo fpp fpr fpu fre frf fro frp frr fru fue fuf fuo fup fur fuu oee oef oeo oep oer of- ofe off ofo ofp ofr ofu oo- oof ooo oop oor op- ope opf opo opp opr or- ore orf oro orp orr oru ou- oue ouf ouo oup our p-p pee pef peo pep per peu pfe pff pfo pfp pfr pfu poe pof poo pop por pou ppe ppf ppo ppp ppr ppu pre prf pro prp prr pru pue puf pup pur puu re- ree ref reo rep rer reu rfe rff rfo rfp rfr rfu roe rof roo rop ror rou rpe rpf rpo rpp rpr rpu rrf rrp rrr rru rue ruf ruo rup rur ruu uee uef uep uer ufe uff ufo ufp ufr ufu uoe uoo uop uor up- upe upf upo upp upr upu ur- ure urf uro urp urr uru uue uur uuu

eeee eefe eero efeo efor eore epee eper epor eppo eppp epro eprp erer eroe eroo erpe erre erro erur euer eur- eure euro feer fefe feff fefo feof fere fero ferr feru ffee ffff ffrr foer fofo foof fopp for- fore foro forr foup four fprf free freo frep froe frop frou frue fuff fufu fuor fur- fure furo furr o-eo oere oeuf ofer off- offe offo offr offu ofor ofre ooer ooff oooo oore opep oper opo- opor oppo ore- oreo orer orfe orff orfu oro- oroe orof oror orpe orro orup ouer oufe ouff oupe our- oure ouro ouu- peep peer peff peor peou pepe pepo per- pere perf pero perp perr peru peur pfff pffr poer poff poof poop poor pop- pope popo popp pore poro porr pouf poup pour pper pppo pppp pprf ppru ppur pre- pree pref prep preu pro- proe prof proo prop prou prue pruf pruu pu-e pueo puer pueu puff pupe pupu pur- pure puro purp purr puru reef reep refe reff refr refu reof reop reou repe repo repp repr repu rere rero reru reue reuf reup reuu rfef roer rofe roff rofo roof roop roor rope ropo rore roro roru roue rouf roup rpoe rpof rrrr ruer rufe ruff rufo rupe rupp rure ruro rurp ruru u-rp ufer uffe uofo uor- uore upor uppe uppp uppu upup ure- urfe urff uro- uroo urpo urre urup urur uuuu

e-pro eeeee eepee efere effer efore efuru eofor eorre epure erere eroor erore error euro- europ eurre feeor feere fefor feoff ferr- ferre ferro feuer foore fore- foreo forro forur fouee foupe foure fouro freep freer frere freur froop frore froup fu-fu fuero furo- furor o-fer oeppo offer offof offre ofour ofpop oo-er ooooo opepe opere opper oreo- orere orero orfeo orfeu orfoe orfor oroer oruro ouoro oure- p-rep peere pepee peppe pepup perer perou perre perro perur peure pforp po-po pooer poope poopo poore poper popop poppe poppo popup porer poro- porro porur pouer pouff poupe poure preef preff preop proer profe proff proof proor prop- prope propp propr prore puero puppe puppo puree purer puro- purre re-up reefe reepe reere refer reffe reffo repop repor reppe repro rere- reree reuer ro-ro roero roffe rofor rooer roofe roope roore rooue roper roppe rorer rouer roufe roure rperf rprop ruere ruffe ruffo rufo- rupee ruper u-pop ufere ufofu uouee upfor upoff upper ureo- urour urupe uuuuu

e-four effere effoff effore epopee errour europe eururo feeror feofor ferfer ferrer ferro- ferrup ferrur foerre foofoo foofur fopper forrer forure foufou fourer fourof fourou freeof freepr freeup frefre freure froofe fruupp fufore furfur furore furour furrer furrfu oferre ofpoor oooooo orrour ouerre peepee peeper peerer peffer pepero pepper perere peroff peroor perore perper perree perrou poeure poffer poofup pooper poopoo poorer pop-up popfor popoff popopo poporo popper poppop pouere pouffe poupee poupou pouppe pourer pppppp pre-op preeue prefer preffe prefou preore preoue preue- profer proffe profor profre profur proper propre propup propur puerer puffer puffup purpre purpur purree purrer reefer reeffe reeper refeff repope repour repper repref repure repuru reroof reuere reuour roeper roofer roopee rooper rouffe roupee rouper ruffer uppoor upprop urouer uroure uruffe uruppu

eeeroer errorof eurofor europop feoffee feoffer feoffor ferrere ferrero ferrour ferrure foo-foo for-rue forfere forfree fou-fou freefor freeppp froerup furrour furrure off-off offeree offerer offeror offerup ofproof orepeer orrouer ourouer pee-pee perrero perrore perrour pfeffer poeuere poo-poo pop-off porpere porpore pourpre preferr preffer prepere prepper proffer proffre proofer proofre propero propper propure pruefer puerper purpour purpure refeoff referee referer reoffer repreef reprefe repreue reproof rerefer ropeoff

europeo- europrop feeoffee forereef fourree froufrou peeppeep pepperer peroffer perrerer poorpoor poroporo pourpour preferee preferer preoffer properer prouffer purpoure referree referrer reproffe

errorfree four-four frou-frou pepper-up poee-poee pourpoure preferree preferrer profferer puff-puff purpureo- repe-refe reproffer

errorproof proreferee

pepperupper proof-proof

pepper-upper propuppropup