wqaw qwaw waqw awqw qaww aqww wqwa qwwa wwqa wwqa qwwa wqwa wawq awwq wwaq wwaq awwq wawq qaww aqww qwaw wqaw awqw waqw
Note: these 'words' (valid or invalid) are all the permutations of the word wqaw. These words are obtained by scrambling the letters in wqaw.