leer leka leke lekk lela lele lell lelu lera lerc lerd lere lerk leuc leud leuk leur lkal llcc lldc lleu lllc llll llud lrac lral lrdd lrrc lrrr luau luca luce luck luda ludd lude lued luer luka luke lula lule lull lulu lura lurd lure lurk luua luuk raad raak rac- raca racc race rack racu rada radc radd rade radl radr radu raec raed rael raer raka rake rakk raku rala rale rall rara rare rark raua rauc raud raue rauk raul rcac rccc rcdc rcde rcle rcrd rdac rder rea- reac read reae reak real rear reau reca recc recd rece reck recr recu reda redc redd rede redl redr redu reed reek reel reka reke rela reld rele rell rera rerd rere reru reue reuk reul reuu rlee rleu rlua rrad rred rrle rrrr ruad ruca ruce ruck ruda rudd rude rudl rued ruel ruer ruka ruke rukk ruku rula rule rulk rull rura rurc rurd rure ruru ruud uaca uald uarc uaru uaua ucad ucak ucal ucar ucca ucdc ucdd ucea ucel ucka ucla ucrc ucua udaa udad udal udar udau udca udea udel uder udra uduk ueda uele uell ukcc ukek ukeu ukla ukra ukrc ukur ulaa ulad ulae ular ulcc ulde ulea ulee ulek ulla ulle ullr ulua uluk ulul urac urad ural urau urca urda urde urdu ure- urea ured urka urke urla urle urra urre uruk urur uulu uuuu