shewn hsewn sehwn eshwn heswn ehswn shwen hswen swhen wshen hwsen whsen sewhn eswhn swehn wsehn ewshn weshn hewsn ehwsn hwesn whesn ewhsn wehsn shenw hsenw sehnw eshnw hesnw ehsnw shnew hsnew snhew nshew hnsew nhsew senhw esnhw snehw nsehw enshw neshw hensw ehnsw hnesw nhesw enhsw nehsw shwne hswne swhne wshne hwsne whsne shnwe hsnwe snhwe nshwe hnswe nhswe swnhe wsnhe snwhe nswhe wnshe nwshe hwnse whnse hnwse nhwse wnhse nwhse sewnh eswnh swenh wsenh ewsnh wesnh senwh esnwh snewh nsewh enswh neswh swneh wsneh snweh nsweh wnseh nwseh ewnsh wensh enwsh newsh wnesh nwesh hewns ehwns hwens whens ewhns wehns henws ehnws hnews nhews enhws nehws hwnes whnes hnwes nhwes wnhes nwhes ewnhs wenhs enwhs newhs wnehs nwehs
Note: these 'words' (valid or invalid) are all the permutations of the word shewn. These words are obtained by scrambling the letters in shewn.