pries rpies pires ipres ripes irpes preis rpeis peris epris repis erpis piers ipers peirs epirs ieprs eiprs rieps ireps reips erips ierps eirps prise rpise pirse iprse ripse irpse prsie rpsie psrie sprie rspie srpie pisre ipsre psire spire ispre sipre rispe irspe rsipe sripe isrpe sirpe presi rpesi persi eprsi repsi erpsi prsei rpsei psrei sprei rspei srpei pesri epsri pseri speri espri sepri respi erspi rsepi srepi esrpi serpi piesr ipesr peisr episr iepsr eipsr piser ipser psier spier isper siper pesir epsir pseir speir espir sepir iespr eispr isepr siepr esipr seipr riesp iresp reisp erisp iersp eirsp risep irsep rsiep sriep isrep sirep resip ersip rseip sreip esrip serip iesrp eisrp iserp sierp esirp seirp
Note: these 'words' (valid or invalid) are all the permutations of the word pries. These words are obtained by scrambling the letters in pries.