waxy awxy wxay xway axwy xawy wayx awyx wyax ywax aywx yawx wxya xwya wyxa ywxa xywa yxwa axyw xayw ayxw yaxw xyaw yxaw
Note: these 'words' (valid or invalid) are all the permutations of the word waxy. These words are obtained by scrambling the letters in waxy.