quai uqai qaui aqui uaqi auqi quia uqia qiua iqua uiqa iuqa qaiu aqiu qiau iqau aiqu iaqu uaiq auiq uiaq iuaq aiuq iauq
Note: these 'words' (valid or invalid) are all the permutations of the word quai. These words are obtained by scrambling the letters in quai.