kynd yknd knyd nkyd ynkd nykd kydn ykdn kdyn dkyn ydkn dykn kndy nkdy kdny dkny ndky dnky yndk nydk ydnk dynk ndyk dnyk
Note: these 'words' (valid or invalid) are all the permutations of the word kynd. These words are obtained by scrambling the letters in kynd.