-ene eeee eefe eefl eefn eele efen elee elef elen eler elfe elle ellu elne elue elul enee enel ener enne ennu enue enuf enur erel eren erer erle erll erne erre erur euer eule eur- eure feel feen feer fefe feff fele felf fell fene fenn fere fern ferr feru ffee ffff ffrr ffun flee flen fler flue fluf flur fnuf free fren frue frun fuel fuff fufu fule full fulu fune funf fur- fure furl furn furr le-u leef leel leen leer lefe leff lele lell lelu lene lenn lere lern leun leur llef lleu llll lner lrne lrrr luef luer lufe luff lufu lule lull lulu lune lunn lure neef neel neen neer nefe neff nefl nele nelf nell nene nenu nere nerf nerl nerr neru neue neuf neun neur neuu nfer nfff nler nnnn nren nrrl nuee nuel nuer nuff nule null nune nunn nure nurl nurn nurr nuru reef reel reen refe reff refl refn refr refu rele rell rene renn renu rere reru reue reuf reul reuu rfef rffl rlee rlef rleu rrle rrrr rrun ruel ruen ruer rufe ruff rule rull rune runf runn rure ruru ruun uele uell ufel ufer uffe ulee ulen ulfe ulle ullr ulne ulul unee unef unen uner unle unlf unne unrf ure- urfe urff urle urne urre urun urur uuen uulu uuuu