peres epres prees rpees erpes repes peers epers peers epers eeprs eeprs prees rpees peres epres repes erpes ereps reeps eerps eerps reeps ereps perse eprse prese rpese erpse repse pesre epsre psere spere espre sepre prsee rpsee psree spree rspee srpee erspe respe esrpe serpe rsepe srepe peesr epesr peesr epesr eepsr eepsr peser epser pseer speer esper seper peser epser pseer speer esper seper eespr eespr esepr seepr esepr seepr prese rpese perse eprse repse erpse prsee rpsee psree spree rspee srpee pesre epsre psere spere espre sepre respe erspe rsepe srepe esrpe serpe eresp reesp eersp eersp reesp eresp ersep resep esrep serep rseep sreep eesrp eesrp eserp seerp eserp seerp resep ersep rseep sreep esrep serep
Note: these 'words' (valid or invalid) are all the permutations of the word peres. These words are obtained by scrambling the letters in peres.