eeee eefe eefl eele eero efeo effi efil efor eiei eier eile eire elee elef eleo eler elex elfe elfi elie elif elil elio elix elle elli ello eloi elro eoir eole eoli eolo eore eori eorl er-x erei erel erer erfx erie eril erio erle erli erll eroe eroi erol eroo erre erro exel exer exfo exif exo- exor exrx feel feer fefe feff fefi fefo feie feil feio feir fele felf feli fell felo feof fere fero ferr ffee ffff ffii ffrr fief fiel fier fife fiff fifi fifo fiii fiil file fili fill filo fioe fior fire fixe fixx flee fler flex flii flix floe floo flor flox foer fofo foie foil foix fole foli foll folo folr folx foof fool for- fore fori forl foro forr foxe foxx free frei freo frex frie fril frio froe frol ieie ieio iele iere ieri ifel ifer ifex ifil ifor ifrf ifri iiie iiii iiio iioi iioo ile- ileo iler ilex ilie ilio ilir ill- ille illi illo iloo ilre ilxx ioee ioel ioii ioio iole iolo ioof iooi iooo iore iori iree irel irer irex irfe iri- irie iril irio irix irre irri ixil ixxi leef leel leer lefe leff leie leif leil leio leir leix lele leli lell lelo leof leoi leor leox lere lero lexi lexx lief liel lier life liff lifl lifo lifx liii liir lile lili lill lilo lio- lior lire liri lirl liro lirr lixi llef llll lloo loei lofe loff lofi loif loir loix lole loli loll lolo looe loof lool loor lore lori loro lox- loxo lrif lroi lrrr lxii lxxi lxxx o-eo oeil oele oere ofer off- offe offo offr ofor ofre oier oiii oire ole- olef olei oleo oler olfe olie olio olle olli ollo olof olor ooer ooff oolo oooo oore ore- orel oreo orer orex orfe orff orfi ori- orie orif oril orio orix orle orlo oro- oroe orof oror orri orro oxer oxi- oxie oxo- oxof oxox oxxo reef reel refe reff refi refl refr reif reii reil reir rele rell relo reof reol rere reri rero rexx rfef rffl rief riel rier riex rife riff riif rile rill rilo riol rire riri rixe rixo rlee rlef rlif roel roer rofe roff rofl rofo roif roil roio roir role rolf roll rolo roof rooi rool roor roox rore rori roro roxo rrif rrle rrrr x-fi xeer xefe xer- xero xexe xfer xiii xil- xili xill xixi xlii xlix xlox xolo xoro xoxo xxii xxix xxxi xxxo xxxx