chsh hcsh cshh schh hsch shch chhs hchs chhs hchs hhcs hhcs cshh schh chsh hcsh shch hsch hshc shhc hhsc hhsc shhc hshc
Note: these 'words' (valid or invalid) are all the permutations of the word chsh. These words are obtained by scrambling the letters in chsh.