gusli ugsli gsuli sguli usgli sugli gulsi uglsi glusi lgusi ulgsi lugsi gslui sglui glsui lgsui slgui lsgui uslgi sulgi ulsgi lusgi slugi lsugi gusil ugsil gsuil sguil usgil sugil guisl ugisl giusl igusl uigsl iugsl gsiul sgiul gisul igsul sigul isgul usigl suigl uisgl iusgl siugl isugl gulis uglis gluis lguis ulgis lugis guils ugils giuls iguls uigls iugls glius lgius gilus iglus ligus ilgus uligs luigs uilgs iulgs liugs ilugs gsliu sgliu glsiu lgsiu slgiu lsgiu gsilu sgilu gislu igslu siglu isglu glisu lgisu gilsu iglsu ligsu ilgsu sligu lsigu silgu islgu lisgu ilsgu uslig sulig ulsig lusig sluig lsuig usilg suilg uislg iuslg siulg isulg ulisg luisg uilsg iulsg liusg ilusg sliug lsiug silug islug lisug ilsug
Note: these 'words' (valid or invalid) are all the permutations of the word gusli. These words are obtained by scrambling the letters in gusli.