hends ehnds hneds nheds enhds nehds hedns ehdns hdens dhens edhns dehns hndes nhdes hdnes dhnes ndhes dnhes endhs nedhs ednhs denhs ndehs dnehs hensd ehnsd hnesd nhesd enhsd nehsd hesnd ehsnd hsend shend eshnd sehnd hnsed nhsed hsned shned nshed snhed enshd neshd esnhd senhd nsehd snehd hedsn ehdsn hdesn dhesn edhsn dehsn hesdn ehsdn hsedn shedn eshdn sehdn hdsen dhsen hsden shden dshen sdhen edshn deshn esdhn sedhn dsehn sdehn hndse nhdse hdnse dhnse ndhse dnhse hnsde nhsde hsnde shnde nshde snhde hdsne dhsne hsdne shdne dshne sdhne ndshe dnshe nsdhe sndhe dsnhe sdnhe endsh nedsh ednsh densh ndesh dnesh ensdh nesdh esndh sendh nsedh snedh edsnh desnh esdnh sednh dsenh sdenh ndseh dnseh nsdeh sndeh dsneh sdneh
Note: these 'words' (valid or invalid) are all the permutations of the word hends. These words are obtained by scrambling the letters in hends.