uuaw uuaw uauw auuw uauw auuw uuwa uuwa uwua wuua uwua wuua uawu auwu uwau wuau awuu wauu uawu auwu uwau wuau awuu wauu
Note: these 'words' (valid or invalid) are all the permutations of the word uuaw. These words are obtained by scrambling the letters in uuaw.