eeeee eeler efere effer efore efuru elele eleo- ellel eller elloe ellul eloee eloff elole eloor elore eloro elulu eluru eofor eorre erere eroor erore errol error euell euler eurel euro- eurre feele feeor feere fefor felle feoff feole ferel ferle ferlo ferr- ferre ferro feuer feule fleer flere flero fleur floor flore floro floru flour fluff fluo- fluor flure flurr folle follo foole foore fore- forel foreo forro forur fouee fouel foule foure fouro freel freer frere freur frore fu-fu fuero fulle fullf fullo furel furo- furor leell leeof leere lefeu leffe lefou leful leleu lelle lerer leuro lofer loffe lofou loler lollo lolol looer loore lorel loreo lorer lorre louer loule loure louro lufre lulle lulul lurer lurue o-fer oerel oerle offer offof offre ofour oleo- olere olleo oller ollur olour oo-er ooooo orell oreo- orere orero orfeo orfeu orfoe orfor orful oroer orolu oruro oullo ouoro oure- ourol reefe reere refel refer reffe reffo relee rello relue rere- reree reuel reuer reule ro-ro roell roero rofel roffe rofor roleo rolfe rolfo rolle rollo rooer roofe roole roore rooue rorer rouer roufe roule roull roure ruele ruell ruere ruffe ruffo rufo- rufol ruler rullo ruule uelfe ufere ufofu ullur ululu uluru uouee urelu ureo- urour uuuuu