eeee eefe eefl eele eero efeo efor ejer ejoo elee elef eleo eler elfe elle ello ellu elro elue elul eole eolo eore eorl erel erer erle erll eroe erol eroo 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 flor flou flue fluf fluo flur foer fofo foje fole foll folo folr foof fool for- fore forj forl foro forr foul four free freo froe frol frou frue fuel fuff fufu fule full fulu fuor fur- fure furl furo furr j-ro jeel jeer jefe jeff jeju jelf jell jeol jere jero jeru jeur joee joel jofr jojo jole jolf joll jolo joof jool joor jore jorf jorl joro joul jour juel juju jule jure jurr juul le-u leef leej leel leer lefe leff lele lell lelo lelu leof leor leou lere lero leur llef lleu llll lloo loeu lofe loff loje lojo lole loll lolo looe loof looj lool loor lore loro loue loul lour louu lrrr luef luer lufe luff lufu luju lule lull lulu lure o-eo oele oere oeuf ofer off- offe offo offr offu ofor ofre ojeu ole- olef oleo oler olfe olju olle ollo olof olor olur ooer ooff oolo oooo oore ore- orel oreo orer orfe orff orfu orle orlo orlu oro- oroe orof oror orro oruj ouer oufe ouff ouju oule oulu our- oure ouro ouu- reef reel refe reff refl refr refu rele rell relo reof reol reou rere rero reru reue reuf reul reuu rfef rffl rlee rlef rleu roel roer rofe roff rofl rofo roje rojo role rolf roll rolo roof rool roor rore roro roru roue rouf roul rrle rrrr ruel ruer rufe ruff rufo rule rull rulo rure ruro ruru uele uell ufel ufer uffe ulee uleo ulfe ulje ulle ullo ullr ulo- ulul uofl uofo uor- uore ure- urfe urff urle uro- urol uroo urre urur uulu uuuu