eeee eele eero eete eetu elee eleo eler elet elle ello ellu elro elte elto elue elul eole eolo eore eorl eoto erel erer eret erle erll eroe erol eroo erre erro ertl ertu erur etee etel eter etoe etre etro ette etto ettu euer eule eur- eure euro eurt le-u leel leer leet lele lell lelo lelu leor leou lere lero lert lete leto lett leur llet lleu llll lloo loeu lole loll lolo looe lool loor loot lore loro lote lotl loto lotr lott loue loul lour lout louu lrrr ltee lttr luer lule lull lulu lure lurt lute o-eo oele oere ole- oleo oler olet olle ollo olor olot oltu olur ooer oolo oooo oore oort ore- orel oreo orer orle orlo orlu oro- oroe oror orot orro orte orto otee oter oto- otoe otoo otor otre otro otte otto ottu otur ouer oule oulu our- oure ouro ourt out- oute outo ouu- reel reet rele rell relo relt reol reot reou rere rero rert reru rete reto retr rett reue reul reut reuu rlee rleu roel roer roet role roll rolo rolt rool roor root rore roro rort roru rote rotl roto rotr rott roue roul rout rrle rrrr rtee rtle rtlt ruel ruer ruet rule rull rulo rure ruro ruru rute rutl ruto rutt rutu teel teer teet tel- tele tell telo telt telu teor ter- tere tero terr teru tete teto tetr tett tetu teut toee toer toet tol- tole toll tolo tolt tolu tool toor toot tore toro torr tort toru tote toto totr tott toul tour tout tre- tree treo tret treu troe troo trot trou trte trtr true trut truu tteo tter ttoe tttt ttul tuel tuer tuet tule tull tulo tulu tuor ture turo turr turt turu tute tutl tuto tutt tutu tuuo uele uell ulee uleo ulle ullo ullr ulo- ulto ultt ulul uor- uore ure- uret urle uro- urol uroo urre urte urur urut utel uter utor utto uttu uulu uuuu