eeee eefe eefl eele eero efeo effi efil efor eiei eier eile eiou eire elee elef eleo eler elfe elfi elie elif elil elio elle elli ello ellu eloi elro elue elui elul eoir eole eoli eolo eore eori eorl erei erel erer erie eril erio eriu erle erli erll eroe eroi erol eroo erre erro erur euer eufi eule euoi eur- eure euro feel feer fefe feff fefi fefo feie feil feio feir fele felf feli fell felo feof fere fero ferr feru ffee ffff ffii ffrr fief fiel fier fife fiff fifi fifo fiii fiil file fili fill filo fioe fior fire flee fler flii floe floo flor flou flue fluf fluo flur foer fofo foie foil fole foli foll folo folr foof fool for- fore fori forl foro forr foul four free frei freo frie fril frio froe frol frou frue fuel fuff fufu fuil fuir fule fuli full fulu fuor fur- fure furi furl furo furr ieie ieio iele iere ieri ifel ifer ifil ifor ifrf ifri iiie iiii iiio iioi iioo ile- ileo iler ilie ilio ilir ill- ille illi illo iloo ilre ioee ioel ioii ioio iole iolo ioof iooi iooo iore iori iree irel irer irfe irfu iri- irie iril irio irre irri irul iuef iuel iuiu le-u leef leel leer lefe leff leie leif leil leio leir lele leli lell lelo lelu leof leoi leor leou lere lero leur lief liel lier lieu life liff lifl lifo liii liir lile lili lill lilo lilu lio- lior lire liri lirl liro lirr liru liue liuf llef lleu llll lloo loei loeu lofe loff lofi loif loir loiu lole loli loll lolo looe loof lool loor lore lori loro loue loui loul lour louu lrif lroi lrrr luef luer lufe luff lufu luif lule luli lull lulu lure luri o-eo oeil oele oere oeuf ofer off- offe offo offr offu ofor ofre oier oiii oire ole- olef olei oleo oler olfe olie olio olle olli ollo olof olor olur ooer ooff oolo oooo oore ore- orel oreo orer orfe orff orfi orfu ori- orie orif oril orio orle orlo orlu oro- oroe orof oror orri orro ouer oufe ouff ouie ouii ouir oule oulu our- oure ouro ouu- reef reel refe reff refi refl refr refu reif reii reil reir reiu rele rell relo reof reol reou rere reri rero reru reue reuf reul reuu rfef rffl rief riel rier rieu rife riff rifu riif rile rill rilo rilu riol riou rire riri riue rlee rlef rleu rlif roel roer rofe roff rofl rofo roif roil roio roir roiu role rolf roll rolo roof rooi rool roor rore rori roro roru roue rouf roul rrif rrle rrrr ruel ruer rufe ruff rufo ruif rule rull rulo rure ruri ruro ruru u-ie ueir uele ueli uell ufel ufer uffe uile uirr ulee uleo ulfe ulie ulle ulli ullo ullr ulo- ulul uofl uofo uor- uore ure- urfe urff urfi urie urif uriu urle uro- urol uroo urre urri urur uulu uuri uuuu