nropp rnopp norpp onrpp ronpp ornpp nrpop rnpop nprop pnrop rpnop prnop noprp onprp nporp pnorp opnrp ponrp ropnp orpnp rponp pronp oprnp pornp nropp rnopp norpp onrpp ronpp ornpp nrpop rnpop nprop pnrop rpnop prnop noprp onprp nporp pnorp opnrp ponrp ropnp orpnp rponp pronp oprnp pornp nrppo rnppo nprpo pnrpo rpnpo prnpo nrppo rnppo nprpo pnrpo rpnpo prnpo nppro pnpro nppro pnpro ppnro ppnro rppno prpno rppno prpno pprno pprno noppr onppr npopr pnopr opnpr ponpr noppr onppr npopr pnopr opnpr ponpr nppor pnpor nppor pnpor ppnor ppnor oppnr popnr oppnr popnr pponr pponr roppn orppn rpopn propn oprpn porpn roppn orppn rpopn propn oprpn porpn rppon prpon rppon prpon ppron ppron opprn poprn opprn poprn pporn pporn
Note: these 'words' (valid or invalid) are all the permutations of the word nropp. These words are obtained by scrambling the letters in nropp.