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