uqib quib uiqb iuqb qiub iqub uqbi qubi ubqi buqi qbui bqui uibq iubq ubiq buiq ibuq biuq qibu iqbu qbiu bqiu ibqu biqu
Note: these 'words' (valid or invalid) are all the permutations of the word uqib. These words are obtained by scrambling the letters in uqib.