wsdh swdh wdsh dwsh sdwh dswh wshd swhd whsd hwsd shwd hswd wdhs dwhs whds hwds dhws hdws sdhw dshw shdw hsdw dhsw hdsw
Note: these 'words' (valid or invalid) are all the permutations of the word wsdh. These words are obtained by scrambling the letters in wsdh.