eeee eefe eefl eele eero efeo efor el-p elee elef eleo eler elfe elle ello ellu elpe elro elue elul eole eolo eore eorl epee eper eple epll epol epor eppo eppp epro eprp erel erer erle erll eroe erol eroo erpe erre erro erur euer eule eur- eure euro feel feer fefe feff fefo fele felf fell felo feof fere fero ferr feru ffee ffff ffrr flee fler floe floo flop flor flou flue fluf fluo flur foer fofo fole foll folo folr foof fool fopp for- fore forl foro forr foul foup four fprf free freo frep froe frol frop frou frue fuel fuff fufu fule full fulu fuor fur- fure furl furo furr le-u leef leel leep leer lefe leff lele lell lelo lelu leof leor leou lepe lepo lepp lere lero lerp leur llef lleu llll lloo loeu lofe loff lole loll lolo looe loof lool loop loor lope lopp lopu lore loro loue loul loup lour louu lpfp lppl lprp lrpu lrrr luef luer lufe luff lufu lule lull lulu lupe lupo lupu lure luup o-eo oele oere oeuf ofer off- offe offo offr offu ofor ofre ole- olef oleo oler olfe olle ollo olof olor olpe olur ooer ooff oolo oooo oore opel opep oper ople opo- opor oppo ore- orel oreo orer orfe orff orfu orle orlo orlu oro- oroe orof oror orpe orro orup ouer oufe ouff oule oulu oupe our- oure ouro ouu- peel peep peer peff pel- pele pelf pell pelo pelu peor peou pepe pepo per- pere perf perl pero perp perr peru peul peur pfff pffr ple- plee pleo pleu plff ploo plop plou plpp plue plup plur poel poer poff pole poll polo polu poof pool poop poor pop- pope popo popp pore poro porr pouf poul poup pour pper pple pplo pppo pppp pprf ppru ppur pre- pree pref prel prep preu prle prlr pro- proe prof prol proo prop prou prue pruf pruu pu-e puel pueo puer pueu puff pule pull pulo pulp pulu pupe pupl pupu pur- pure purl puro purp purr puru reef reel reep refe reff refl refr refu rele rell relo relp reof reol reop reou repe repl repo repp repr repu rere rero reru reue reuf reul reup reuu rfef rffl rlee rlef rleu roel roer rofe roff rofl rofo role rolf roll rolo rolp roof rool roop roor rope ropo rore roro roru roue rouf roul roup rpoe rpof rrle rrrr ruel ruer rufe ruff rufo rule rull rulo rupe rupp rure ruro rurp ruru u-rp uele uell ufel ufer uffe ulee uleo ulfe ulle ullo ullr ulo- ulul uofl uofo uor- uore uplo upor uppe uppp uppu upup ure- urfe urff urle uro- urol uroo urpo urre urup urur uulu uuuu