eeee eele eete eetu eext elee eler elet elex elle ellu elte elue elul er-x erel erer eret erle erll erre ertl ertu erur etee etel eter etre ette ettu etux euer eule eur- eure eurt exel exer exrx exte extl extr exul le-u leel leer leet lele lell lelu lere lert lete lett leur lext lexx llet lleu llll lrrr ltee lttr luer lule lull lulu lure lurt lute luxe lxxx reel reet rele rell relt rere rert reru rete retr rett reue reul reut reuu reux rexx rlee rleu rrle rrrr rtee rtex rtle rtlt ruel ruer ruet rule rull rure ruru rute rutl rutt rutu teel teer teet tel- tele tell telt telu ter- tere terr teru tete tetr tett tetu tetx teut text tltx tre- tree tret treu trex trte trtr true trut truu trux tter tttt ttul tuel tuer tuet tule tull tulu ture turr turt turu tute tutl tutt tutu tuxl txtr uele uell uext ulee ulex ulle ullr ultt ulul ure- uret urex urle urre urte urur urut utel uter uttu uulu uuuu uxue uxul xeer xer- xert xexe xlet xtul xuxu xxxx