xoic oxic xioc ixoc oixc ioxc xoci oxci xcoi cxoi ocxi coxi xico ixco xcio cxio icxo cixo oicx iocx ocix coix icox ciox
Note: these 'words' (valid or invalid) are all the permutations of the word xoic. These words are obtained by scrambling the letters in xoic.