poprin opprin pporin pporin opprin poprin porpin oprpin propin rpopin orppin roppin pproin pproin prpoin rppoin prpoin rppoin oprpin porpin orppin roppin propin rpopin popirn oppirn ppoirn ppoirn oppirn popirn poiprn opiprn pioprn ipoprn oipprn iopprn ppiorn ppiorn piporn ipporn piporn ipporn opiprn poiprn oipprn iopprn pioprn ipoprn poripn opripn proipn rpoipn orpipn ropipn poirpn opirpn piorpn iporpn oiprpn ioprpn priopn rpiopn piropn ipropn ripopn irpopn orippn roippn oirppn iorppn rioppn iroppn pprion pprion prpion rppion prpion rppion ppiron ppiron pipron ippron pipron ippron pripon rpipon pirpon iprpon rippon irppon pripon rpipon pirpon iprpon rippon irppon opripn poripn orpipn ropipn proipn rpoipn opirpn poirpn oiprpn ioprpn piorpn iporpn orippn roippn oirppn iorppn rioppn iroppn priopn rpiopn piropn ipropn ripopn irpopn poprni opprni pporni pporni opprni poprni porpni oprpni propni rpopni orppni roppni pproni pproni prponi rpponi prponi rpponi oprpni porpni orppni roppni propni rpopni popnri oppnri pponri pponri oppnri popnri ponpri opnpri pnopri npopri onppri noppri ppnori ppnori pnpori nppori pnpori nppori opnpri ponpri onppri noppri pnopri npopri pornpi oprnpi pronpi rponpi orpnpi ropnpi ponrpi opnrpi pnorpi nporpi onprpi noprpi prnopi rpnopi pnropi npropi rnpopi nrpopi ornppi ronppi onrppi norppi rnoppi nroppi pprnoi pprnoi prpnoi rppnoi prpnoi rppnoi ppnroi ppnroi pnproi npproi pnproi npproi prnpoi rpnpoi pnrpoi nprpoi rnppoi nrppoi prnpoi rpnpoi pnrpoi nprpoi rnppoi nrppoi oprnpi pornpi orpnpi ropnpi pronpi rponpi opnrpi ponrpi onprpi noprpi pnorpi nporpi ornppi ronppi onrppi norppi rnoppi nroppi prnopi rpnopi pnropi npropi rnpopi nrpopi popinr oppinr ppoinr ppoinr oppinr popinr poipnr opipnr piopnr ipopnr oippnr ioppnr ppionr ppionr piponr ipponr piponr ipponr opipnr poipnr oippnr ioppnr piopnr ipopnr popnir oppnir pponir pponir oppnir popnir ponpir opnpir pnopir npopir onppir noppir ppnoir ppnoir pnpoir nppoir pnpoir nppoir opnpir ponpir onppir noppir pnopir npopir poinpr opinpr pionpr iponpr oipnpr iopnpr ponipr opnipr pnoipr npoipr onpipr nopipr pinopr ipnopr pniopr npiopr inpopr nipopr oinppr ionppr onippr noippr inoppr nioppr ppinor ppinor pipnor ippnor pipnor ippnor ppnior ppnior pnpior nppior pnpior nppior pinpor ipnpor pnipor npipor inppor nippor pinpor ipnpor pnipor npipor inppor nippor opinpr poinpr oipnpr iopnpr pionpr iponpr opnipr ponipr onpipr nopipr pnoipr npoipr oinppr ionppr onippr noippr inoppr nioppr pinopr ipnopr pniopr npiopr inpopr nipopr porinp oprinp proinp rpoinp orpinp ropinp poirnp opirnp piornp ipornp oiprnp ioprnp prionp rpionp pironp ipronp riponp irponp oripnp roipnp oirpnp iorpnp riopnp iropnp pornip oprnip pronip rponip orpnip ropnip ponrip opnrip pnorip nporip onprip noprip prnoip rpnoip pnroip nproip rnpoip nrpoip ornpip ronpip onrpip norpip rnopip nropip poinrp opinrp pionrp iponrp oipnrp iopnrp ponirp opnirp pnoirp npoirp onpirp nopirp pinorp ipnorp pniorp npiorp inporp niporp oinprp ionprp oniprp noiprp inoprp nioprp prinop rpinop pirnop iprnop ripnop irpnop prniop rpniop pnriop npriop rnpiop nrpiop pinrop ipnrop pnirop npirop inprop niprop rinpop irnpop rnipop nripop inrpop nirpop orinpp roinpp oirnpp iornpp rionpp ironpp ornipp ronipp onripp noripp rnoipp nroipp oinrpp ionrpp onirpp noirpp inorpp niorpp rinopp irnopp rniopp nriopp inropp niropp pprino pprino prpino rppino prpino rppino ppirno ppirno piprno ipprno piprno ipprno pripno rpipno pirpno iprpno rippno irppno pripno rpipno pirpno iprpno rippno irppno pprnio pprnio prpnio rppnio prpnio rppnio ppnrio ppnrio pnprio npprio pnprio npprio prnpio rpnpio pnrpio nprpio rnppio nrppio prnpio rpnpio pnrpio nprpio rnppio nrppio ppinro ppinro pipnro ippnro pipnro ippnro ppniro ppniro pnpiro nppiro pnpiro nppiro pinpro ipnpro pnipro npipro inppro nippro pinpro ipnpro pnipro npipro inppro nippro prinpo rpinpo pirnpo iprnpo ripnpo irpnpo prnipo rpnipo pnripo npripo rnpipo nrpipo pinrpo ipnrpo pnirpo npirpo inprpo niprpo rinppo irnppo rnippo nrippo inrppo nirppo prinpo rpinpo pirnpo iprnpo ripnpo irpnpo prnipo rpnipo pnripo npripo rnpipo nrpipo pinrpo ipnrpo pnirpo npirpo inprpo niprpo rinppo irnppo rnippo nrippo inrppo nirppo oprinp porinp orpinp ropinp proinp rpoinp opirnp poirnp oiprnp ioprnp piornp ipornp oripnp roipnp oirpnp iorpnp riopnp iropnp prionp rpionp pironp ipronp riponp irponp oprnip pornip orpnip ropnip pronip rponip opnrip ponrip onprip noprip pnorip nporip ornpip ronpip onrpip norpip rnopip nropip prnoip rpnoip pnroip nproip rnpoip nrpoip opinrp poinrp oipnrp iopnrp pionrp iponrp opnirp ponirp onpirp nopirp pnoirp npoirp oinprp ionprp oniprp noiprp inoprp nioprp pinorp ipnorp pniorp npiorp inporp niporp orinpp roinpp oirnpp iornpp rionpp ironpp ornipp ronipp onripp noripp rnoipp nroipp oinrpp ionrpp onirpp noirpp inorpp niorpp rinopp irnopp rniopp nriopp inropp niropp prinop rpinop pirnop iprnop ripnop irpnop prniop rpniop pnriop npriop rnpiop nrpiop pinrop ipnrop pnirop npirop inprop niprop rinpop irnpop rnipop nripop inrpop nirpop
Note: these 'words' (valid or invalid) are all the permutations of the word poprin. These words are obtained by scrambling the letters in poprin.