eeee eefe eefl eeke eele efke ekek eker ekur elee elef elek eler elfe elke elle ellu elue elul erel erer erke erle erll erre erur euer eule eur- eure f--k feek feel feer fefe feff feke fele felf felk fell fere ferk ferr feru ffee ffff ffrr flee fler flue fluf flur free frue fuel fuff fufu fuke fukk fuku fule fulk full fulu fur- fure furl furr keef keek keel keer keff kefr keke kekl keku kele kelf kelk kell kelu ker- kere kerf kerk kerl kerr keru keul keur kfel kfer kfff kffk kflf kfll kfre kfrr kfru kful kkfr kkkk kklf kkll kkre kkrf kkrk kkrl kkrr kkuu klee klef klek kler klfe klff klkk klkl klkr klle kllk klrf klrk klrr klru klue kluf kluk klur kluu kree kref krek kreu krfe krff krke krkk krkr krku krle krlf krre krrf krrk krrl krrr krue kruf kruk krul krur kuek kuel kueu kuff kufr kuke kukk kukl kuku kule kulf kull kulu kure kurk kurl kurr kuru kuuk kuul kuur kuuu le-u leef leek leel leer lefe leff leke lekk lele lell lelu lere lerk leuk leur llef lleu llll lrrr luef luer lufe luff lufu luke lule lull lulu lure lurk luuk reef reek reel refe reff refl refr refu reke rele rell rere reru reue reuf reuk reul reuu rfef rffl rkkf rlee rlef rleu rrle rrrr ruel ruer rufe ruff ruke rukk ruku rule rulk rull rure ruru uele uell ufel ufer uffe ufuk ukek ukeu ukur ulee ulek ulfe ulle ullr uluk ulul ure- urfe urff urke urle urre uruk urur uulu uuuu