eeee eees eefe eefl eele eels eese efes effs elee elef eles elex elfe elfs elle ells ellu else elsu elue elul elus esee esel eses esfs esse essl essu esuf esus eule euse exel exes exul feel fees fefe feff fele felf fell fels fese fess feus feux ffee ffff ffss flee fles flex flue fluf flus flux fssf fuel fuff fufu fule full fuls fulu fuse fuss fusu fuxl le-u leef leel lees lefe leff lele lell lelu lese less lesu lexx llef lles lleu llll lses luef lues lufe luff lufu lule lull lulu luse luss luxe lxxx se-e se-f se-s se-u se-x seef seel sees seeu seex seff sefl sele self sell sels selu sese sess seul seux sex- sexe sfls sfss sfsu slee sles slsu slue ssee sses ssex ssfl ssle sssf ssss suee suel sues sueu suf- suff sufs sufu sul- sule sulf sull sulu sus- suse suss susu suus sux- suxe uele uell uess ufel uffe ufxs ulee ules ulex ulfe ulle ulul ulus usee usef usel uses usfl usfs usle uslu usse ussf usss ussu usul usus uulu uuuu uxue uxul uxus xefe xeus xexe xsel xuxu xxxx