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