cswh scwh cwsh wcsh swch wsch cshw schw chsw hcsw shcw hscw cwhs wchs chws hcws whcs hwcs swhc wshc shwc hswc whsc hwsc
Note: these 'words' (valid or invalid) are all the permutations of the word cswh. These words are obtained by scrambling the letters in cswh.