hules uhles hlues lhues ulhes luhes huels uhels heuls ehuls uehls euhls hleus lheus helus ehlus lehus elhus ulehs luehs uelhs eulhs leuhs eluhs hulse uhlse hluse lhuse ulhse luhse husle uhsle hsule shule ushle suhle hlsue lhsue hslue shlue lshue slhue ulshe lushe uslhe sulhe lsuhe sluhe huesl uhesl heusl ehusl uehsl euhsl husel uhsel hsuel shuel ushel suhel hesul ehsul hseul sheul eshul sehul ueshl eushl usehl suehl esuhl seuhl hlesu lhesu helsu ehlsu lehsu elhsu hlseu lhseu hsleu shleu lsheu slheu heslu ehslu hselu shelu eshlu sehlu leshu elshu lsehu slehu eslhu selhu ulesh luesh uelsh eulsh leush elush ulseh luseh usleh suleh lsueh slueh ueslh euslh uselh suelh esulh seulh lesuh elsuh lseuh sleuh esluh seluh
Note: these 'words' (valid or invalid) are all the permutations of the word hules. These words are obtained by scrambling the letters in hules.