eeee eefe eefl eele efeo effi efil eiei eile elee elef eleo elfe elfi elie elif elil elio elle elli ello eloi eole eoli eolo feel fefe feff fefi fefo feie feil feio fele felf feli fell felo feof ffee ffff ffii fief fiel fife fiff fifi fifo fiii fiil file fili fill filo fioe flee flii floe floo fofo foie foil fole foli foll folo foof fool ieie ieio iele ifel ifil iiie iiii iiio iioi iioo ile- ileo ilie ilio ill- ille illi illo iloo ioee ioel ioii ioio iole iolo ioof iooi iooo leef leel lefe leff leie leif leil leio lele leli lell lelo leof leoi lief liel life liff lifl lifo liii lile lili lill lilo lio- llef llll lloo loei lofe loff lofi loif lole loli loll lolo looe loof lool o-eo oeil oele off- offe offo oiii ole- olef olei oleo olfe olie olio olle olli ollo olof ooff oolo oooo