wasts awsts wsats swats aswts sawts watss awtss wtass twass atwss tawss wstas swtas wtsas twsas stwas tswas astws satws atsws tasws staws tsaws wasst awsst wsast swast aswst sawst wasst awsst wsast swast aswst sawst wssat swsat wssat swsat sswat sswat asswt saswt asswt saswt ssawt ssawt watss awtss wtass twass atwss tawss wasts awsts wsats swats aswts sawts wtsas twsas wstas swtas tswas stwas atsws tasws astws satws tsaws staws wstsa swtsa wtssa twssa stwsa tswsa wssta swsta wssta swsta sswta sswta wtssa twssa wstsa swtsa tswsa stwsa stswa tsswa sstwa sstwa tsswa stswa astsw satsw atssw tassw stasw tsasw asstw sastw asstw sastw ssatw ssatw atssw tassw astsw satsw tsasw stasw stsaw tssaw sstaw sstaw tssaw stsaw
Note: these 'words' (valid or invalid) are all the permutations of the word wasts. These words are obtained by scrambling the letters in wasts.