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