eeee eefe eefl eele eero eete eext efeo efet efor eft- elee elef eleo eler elet elex elfe elft elle ello elro elte elto eole eolo eore eorl eoto er-x erel erer eret erft erfx erle erll eroe erol eroo erre erro ertl etee etel eter etfe etoe etox etre etro ette etto exel exer exfo exo- exor exrx exte extl extr feel feer feet fefe feff fefo fele felf fell felo felt feof fere fero ferr fert fete fetr fett fext ffee ffff ffrr fftf flee fler flet flex floe floo flor flot flox foer fofo fole foll folo folr folt folx foof fool foot for- fore forl foro forr fort fote foto fott foxe foxx free freo fret frex froe frol frot ft-l fter leef leel leer leet lefe leff left lele lell lelo leof leor leox lere lero lert lete leto lett lext lexx llef llet llll lloo lofe loff loft lole loll lolo looe loof lool loor loot lore loro lote lotl loto lotr lott lox- loxo lrrr ltee lttr lxxx 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 orex orfe orff orle orlo oro- oroe orof oror orot orro orte orto otee oter oto- otoe otof otoo otor otre otro otte otto oxer oxo- oxof oxox oxxo reef reel reet refe reff refl refr reft rele rell relo relt reof reol reot rere rero rert rete reto retr rett rexx rfef rffl rlee rlef roel roer roet rofe roff rofl rofo role rolf roll rolo rolt roof rool roor root roox rore roro rort rote rotl roto rotr rott roxo rrle rrrr rtee rtex rtle rtlt teef teel teer teet teff tefl teft tel- tele tell telo telt teor ter- tere terf tero terr tete teto tetr tett tetx text tfot tfox tltx toee toer toet toff tofo toft tol- tole toll tolo tolt toof tool toor toot tore torf toro torr tort torx tote toto totr tott tox- toxo toxt tre- tree tref treo tret trex trfr troe troo trot trox trte trtr tteo tter ttff ttoe tttt txtr xeer xefe xer- xero xert xexe xfer xlet xlox xolo xoro xote xoxo xtol xtro xxxo xxxx