nown onwn nwon wnon ownn wonn nonw onnw nnow nnow onnw nonw nwno wnno nnwo nnwo wnno nwno ownn wonn onwn nown wnon nwon
Note: these 'words' (valid or invalid) are all the permutations of the word nown. These words are obtained by scrambling the letters in nown.