dexy edxy dxey xdey exdy xedy deyx edyx dyex ydex eydx yedx dxye xdye dyxe ydxe xyde yxde exyd xeyd eyxd yexd xyed yxed
Note: these 'words' (valid or invalid) are all the permutations of the word dexy. These words are obtained by scrambling the letters in dexy.