eeee eefe eefl eele efeo elee elef eleo elfe elle ello ellu elue elul eole eolo eule feel fefe feff fefo fele felf fell felo feof ffee ffff flee floe floo flou flue fluf fluo fofo fole foll folo foof fool foul fuel fuff fufu fule full fulu le-u leef leel lefe leff lele lell lelo lelu leof leou llef lleu llll lloo loeu lofe loff lole loll lolo looe loof lool loue loul louu luef lufe luff lufu lule lull lulu o-eo oele oeuf off- offe offo offu ole- olef oleo olfe olle ollo olof ooff oolo oooo oufe ouff oule oulu ouu- uele uell ufel uffe ulee uleo ulfe ulle ullo ulo- ulul uofl uofo uulu uuuu