eeee eefe eefl eele eero eete efeo efet efor eft- elee elef eleo eler elet elfe elft elle ello elro elte elto eole eolo eore eorl eoto erel erer eret erft erle erll eroe erol eroo erre erro ertl etee etel eter etfe etoe etre etro ette etto feel feer feet fefe feff fefo fele felf fell felo felt feof fere fero ferr fert fete fetr fett ffee ffff ffrr fftf flee fler flet floe floo flor flot foer fofo fole foll folo folr folt foof fool foot for- fore forl foro forr fort fote foto fott free freo fret froe frol frot ft-l fter leef leel leer leet lefe leff left lele lell lelo leof leor lere lero lert lete leto lett llef llet llll lloo lofe loff loft lole loll lolo looe loof lool loor loot lore loro lote lotl loto lotr lott lrrr ltee lttr o-eo oele oere ofer off- offe offo offr ofor ofre ole- olef oleo oler olet olfe olle ollo olof olor olot ooer ooff oolo oooo oore oort ore- orel oreo orer orfe orff orle orlo oro- oroe orof oror orot orro orte orto otee oter oto- otoe otof otoo otor otre otro otte otto reef reel reet refe reff refl refr reft rele rell relo relt reof reol reot rere rero rert rete reto retr rett rfef rffl rlee rlef roel roer roet rofe roff rofl rofo role rolf roll rolo rolt roof rool roor root rore roro rort rote rotl roto rotr rott rrle rrrr rtee rtle rtlt teef teel teer teet teff tefl teft tel- tele tell telo telt teor ter- tere terf tero terr tete teto tetr tett tfot toee toer toet toff tofo toft tol- tole toll tolo tolt toof tool toor toot tore torf toro torr tort tote toto totr tott tre- tree tref treo tret trfr troe troo trot trte trtr tteo tter ttff ttoe tttt