waxl awxl wxal xwal axwl xawl walx awlx wlax lwax alwx lawx wxla xwla wlxa lwxa xlwa lxwa axlw xalw alxw laxw xlaw lxaw
Note: these 'words' (valid or invalid) are all the permutations of the word waxl. These words are obtained by scrambling the letters in waxl.