nyxe ynxe nxye xnye yxne xyne nyex ynex neyx enyx yenx eynx nxey xney nexy enxy xeny exny yxen xyen yexn eyxn xeyn exyn
Note: these 'words' (valid or invalid) are all the permutations of the word nyxe. These words are obtained by scrambling the letters in nyxe.