nhsh hnsh nshh snhh hsnh shnh nhhs hnhs nhhs hnhs hhns hhns nshh snhh nhsh hnsh shnh hsnh hshn shhn hhsn hhsn shhn hshn
Note: these 'words' (valid or invalid) are all the permutations of the word nhsh. These words are obtained by scrambling the letters in nhsh.