qhos hqos qohs oqhs hoqs ohqs qhso hqso qsho sqho hsqo shqo qosh oqsh qsoh sqoh osqh soqh hosq ohsq hsoq shoq oshq sohq
Note: these 'words' (valid or invalid) are all the permutations of the word qhos. These words are obtained by scrambling the letters in qhos.