ynix nyix yinx iynx niyx inyx ynxi nyxi yxni xyni nxyi xnyi yixn iyxn yxin xyin ixyn xiyn nixy inxy nxiy xniy ixny xiny
Note: these 'words' (valid or invalid) are all the permutations of the word ynix. These words are obtained by scrambling the letters in ynix.