seepp esepp seepp esepp eespp eespp sepep espep speep pseep epsep pesep sepep espep speep pseep epsep pesep eepsp eepsp epesp peesp epesp peesp seepp esepp seepp esepp eespp eespp sepep espep speep pseep epsep pesep sepep espep speep pseep epsep pesep eepsp eepsp epesp peesp epesp peesp seppe esppe spepe psepe epspe pespe seppe esppe spepe psepe epspe pespe sppee pspee sppee pspee ppsee ppsee eppse pepse eppse pepse ppese ppese seppe esppe spepe psepe epspe pespe seppe esppe spepe psepe epspe pespe sppee pspee sppee pspee ppsee ppsee eppse pepse eppse pepse ppese ppese eepps eepps epeps peeps epeps peeps eepps eepps epeps peeps epeps peeps eppes pepes eppes pepes ppees ppees eppes pepes eppes pepes ppees ppees
Note: these 'words' (valid or invalid) are all the permutations of the word seepp. These words are obtained by scrambling the letters in seepp.