lexes elxes lxees xlees exles xeles leexs elexs leexs elexs eelxs eelxs lxees xlees lexes elxes xeles exles exels xeels eexls eexls xeels exels lexse elxse lxese xlese exlse xelse lesxe elsxe lsexe slexe eslxe selxe lxsee xlsee lsxee slxee xslee sxlee exsle xesle esxle sexle xsele sxele leesx elesx leesx elesx eelsx eelsx lesex elsex lseex sleex eslex selex lesex elsex lseex sleex eslex selex eeslx eeslx eselx seelx eselx seelx lxese xlese lexse elxse xelse exlse lxsee xlsee lsxee slxee xslee sxlee lesxe elsxe lsexe slexe eslxe selxe xesle exsle xsele sxele esxle sexle exesl xeesl eexsl eexsl xeesl exesl exsel xesel esxel sexel xseel sxeel eesxl eesxl esexl seexl esexl seexl xesel exsel xseel sxeel esxel sexel
Note: these 'words' (valid or invalid) are all the permutations of the word lexes. These words are obtained by scrambling the letters in lexes.