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