poxy opxy pxoy xpoy oxpy xopy poyx opyx pyox ypox oypx yopx pxyo xpyo pyxo ypxo xypo yxpo oxyp xoyp oyxp yoxp xyop yxop
Note: these 'words' (valid or invalid) are all the permutations of the word poxy. These words are obtained by scrambling the letters in poxy.