pcyh cpyh pych ypch cyph ycph pchy cphy phcy hpcy chpy hcpy pyhc yphc phyc hpyc yhpc hypc cyhp ychp chyp hcyp yhcp hycp
Note: these 'words' (valid or invalid) are all the permutations of the word pcyh. These words are obtained by scrambling the letters in pcyh.