wrjh rwjh wjrh jwrh rjwh jrwh wrhj rwhj whrj hwrj rhwj hrwj wjhr jwhr whjr hwjr jhwr hjwr rjhw jrhw rhjw hrjw jhrw hjrw
Note: these 'words' (valid or invalid) are all the permutations of the word wrjh. These words are obtained by scrambling the letters in wrjh.