eeee eefe eefl eele efeo effi efil eiei eile eipo el-p elee elef eleo elfe elfi elie elif elil elio elle elli ello eloi elpe elpi eole eoli eolo epee epi- epie epil epip eple epll epol eppo eppp 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 fipp flee flii flip floe floo flop fofo foie foil fole foli foll folo foof fool fopp ieie ieio iele ifel ifil ifpo iiie iiii iiio iioi iioo iiop iipf ile- ileo ilie ilio ill- ille illi illo illp iloo ilpe ioee ioel ioii ioio iole iolo ioof iooi iooo iopl ipie ipil iplo ipoe ipop ippf ippo leef leel leep lefe leff leie leif leil leio lele leli lell lelo leof leoi lepe lepi lepo lepp lief liel liep life liff lifl lifo liii lile lili lill lilo lio- lip- lipe lipi lipl lipo lipp llef llll lloo loei lofe loff lofi loif lole loli loll lolo looe loof lool loop lope lopi lopp lpfp lppl o-eo oeil oele off- offe offo oiii ole- olef olei oleo olfe olie olio olle olli ollo olof olpe ooff oolo oooo opei opel opep opie opii opio ople opo- oppi oppo peel peep peff peil peio peip pel- pele pelf pell pelo pepe pepi pepo pfff pfli piel piep piff piip pil- pile pili pill pilo pipe pipi pipo pipp ple- plee plei pleo plff plie plif plio plip ploo plop plpp poel poff pofi poil poio pole poli poll polo poof pool poop pop- pope popi popo popp ppie ppif pple ppli pplo pppo pppp