eeee eees eefe eefl eele eels eers eese efes effs elee elef eler eles elfe elfs elle ells ellu else elsu elue elul elus erel erer eres erfs erle erll erre errs erse erur erus esee esel eser eses esfs esse essl essu esuf esus euer eule eur- eure euse feel feer fees fefe feff fele felf fell fels fere ferr fers feru fese fess feus ffee ffff ffrr ffss flee fler fles flue fluf flur flus free fres frue fssf fuel fuff fufu fule full fuls fulu fur- fure furl furr furs fuse fuss fusu le-u leef leel leer lees lefe leff lele lell lelu lere lese less lesu leur llef lles lleu llll lrrr lrse ls-r lses lssr luef luer lues lufe luff lufu lule lull lulu lure lurs luse luss reef reel rees refe reff refl refr refs refu rele rell rels rere rers reru rese ress reue reuf reul reus reuu rfef rffl rlee rlef rleu rlls rrle rrrr rsee rsre rssl ruel ruer rues rufe ruff rule rull rure rurs ruru ruse russ rusu se-e se-f se-s se-u seef seel seer sees seeu seff sefl sele self sell sels selu sere serf serr sers seru sese sess seul seur sfer sfls sfss sfsu slee sler sles slre slrs slsu slue slur sres ssee sses ssfl ssle ssrl ssrs sssf ssss suee suel suer sues sueu suf- suff sufr sufs sufu sul- sule sulf sull sulu sur- sure surf surr surs suru sus- suse suss susu suus uele uell uers uess ufel ufer uffe ulee ules ulfe ulle ullr ulul ulus ure- ures urfe urff urle urls urre urse urss ursu urur urus usee usef usel user uses usfl usfs usle uslu usse ussf ussr usss ussu usul usus uulu uuuu