qhar hqar qahr aqhr haqr ahqr qhra hqra qrha rqha hrqa rhqa qarh aqrh qrah rqah arqh raqh harq ahrq hraq rhaq arhq rahq
Note: these 'words' (valid or invalid) are all the permutations of the word qhar. These words are obtained by scrambling the letters in qhar.