uxim xuim uixm iuxm xium ixum uxmi xumi umxi muxi xmui mxui uimx iumx umix muix imux miux ximu ixmu xmiu mxiu imxu mixu
Note: these 'words' (valid or invalid) are all the permutations of the word uxim. These words are obtained by scrambling the letters in uxim.