prions rpions pirons iprons ripons irpons proins rpoins porins oprins ropins orpins piorns iporns poirns opirns ioprns oiprns riopns iropns roipns oripns iorpns oirpns prinos rpinos pirnos iprnos ripnos irpnos prnios rpnios pnrios nprios rnpios nrpios pinros ipnros pniros npiros inpros nipros rinpos irnpos rnipos nripos inrpos nirpos pronis rponis pornis oprnis ropnis orpnis prnois rpnois pnrois nprois rnpois nrpois ponris opnris pnoris nporis onpris nopris ronpis ornpis rnopis nropis onrpis norpis pionrs iponrs poinrs opinrs iopnrs oipnrs pinors ipnors pniors npiors inpors nipors ponirs opnirs pnoirs npoirs onpirs nopirs ionprs oinprs inoprs nioprs oniprs noiprs rionps ironps roinps orinps iornps oirnps rinops irnops rniops nriops inrops nirops ronips ornips rnoips nroips onrips norips ionrps oinrps inorps niorps onirps noirps priosn rpiosn pirosn iprosn riposn irposn proisn rpoisn porisn oprisn ropisn orpisn piorsn iporsn poirsn opirsn ioprsn oiprsn riopsn iropsn roipsn oripsn iorpsn oirpsn prison rpison pirson iprson ripson irpson prsion rpsion psrion sprion rspion srpion pisron ipsron psiron spiron ispron sipron rispon irspon rsipon sripon isrpon sirpon prosin rposin porsin oprsin ropsin orpsin prsoin rpsoin psroin sproin rspoin srpoin posrin opsrin psorin sporin osprin soprin rospin orspin rsopin sropin osrpin sorpin piosrn iposrn poisrn opisrn iopsrn oipsrn pisorn ipsorn psiorn spiorn isporn siporn posirn opsirn psoirn spoirn ospirn sopirn iosprn oisprn isoprn sioprn osiprn soiprn riospn irospn roispn orispn iorspn oirspn risopn irsopn rsiopn sriopn isropn siropn rosipn orsipn rsoipn sroipn osripn soripn iosrpn oisrpn isorpn siorpn osirpn soirpn prinso rpinso pirnso iprnso ripnso irpnso prniso rpniso pnriso npriso rnpiso nrpiso pinrso ipnrso pnirso npirso inprso niprso rinpso irnpso rnipso nripso inrpso nirpso prisno rpisno pirsno iprsno ripsno irpsno prsino rpsino psrino sprino rspino srpino pisrno ipsrno psirno spirno isprno siprno rispno irspno rsipno sripno isrpno sirpno prnsio rpnsio pnrsio nprsio rnpsio nrpsio prsnio rpsnio psrnio sprnio rspnio srpnio pnsrio npsrio psnrio spnrio nsprio snprio rnspio nrspio rsnpio srnpio nsrpio snrpio pinsro ipnsro pnisro npisro inpsro nipsro pisnro ipsnro psinro spinro ispnro sipnro pnsiro npsiro psniro spniro nspiro snpiro inspro nispro isnpro sinpro nsipro snipro rinspo irnspo rnispo nrispo inrspo nirspo risnpo irsnpo rsinpo srinpo isrnpo sirnpo rnsipo nrsipo rsnipo srnipo nsripo snripo insrpo nisrpo isnrpo sinrpo nsirpo snirpo pronsi rponsi pornsi oprnsi ropnsi orpnsi prnosi rpnosi pnrosi nprosi rnposi nrposi ponrsi opnrsi pnorsi nporsi onprsi noprsi ronpsi ornpsi rnopsi nropsi onrpsi norpsi prosni rposni porsni oprsni ropsni orpsni prsoni rpsoni psroni sproni rsponi srponi posrni opsrni psorni sporni osprni soprni rospni orspni rsopni sropni osrpni sorpni prnsoi rpnsoi pnrsoi nprsoi rnpsoi nrpsoi prsnoi rpsnoi psrnoi sprnoi rspnoi srpnoi pnsroi npsroi psnroi spnroi nsproi snproi rnspoi nrspoi rsnpoi srnpoi nsrpoi snrpoi ponsri opnsri pnosri nposri onpsri nopsri posnri opsnri psonri sponri ospnri sopnri pnsori npsori psnori spnori nspori snpori onspri nospri osnpri sonpri nsopri snopri ronspi ornspi rnospi nrospi onrspi norspi rosnpi orsnpi rsonpi sronpi osrnpi sornpi rnsopi nrsopi rsnopi srnopi nsropi snropi onsrpi nosrpi osnrpi sonrpi nsorpi snorpi pionsr iponsr poinsr opinsr iopnsr oipnsr pinosr ipnosr pniosr npiosr inposr niposr ponisr opnisr pnoisr npoisr onpisr nopisr ionpsr oinpsr inopsr niopsr onipsr noipsr piosnr iposnr poisnr opisnr iopsnr oipsnr pisonr ipsonr psionr spionr isponr siponr posinr opsinr psoinr spoinr ospinr sopinr iospnr oispnr isopnr siopnr osipnr soipnr pinsor ipnsor pnisor npisor inpsor nipsor pisnor ipsnor psinor spinor ispnor sipnor pnsior npsior psnior spnior nspior snpior inspor nispor isnpor sinpor nsipor snipor ponsir opnsir pnosir nposir onpsir nopsir posnir opsnir psonir sponir ospnir sopnir pnsoir npsoir psnoir spnoir nspoir snpoir onspir nospir osnpir sonpir nsopir snopir ionspr oinspr inospr niospr onispr noispr iosnpr oisnpr isonpr sionpr osinpr soinpr insopr nisopr isnopr sinopr nsiopr sniopr onsipr nosipr osnipr sonipr nsoipr snoipr rionsp ironsp roinsp orinsp iornsp oirnsp rinosp irnosp rniosp nriosp inrosp nirosp ronisp ornisp rnoisp nroisp onrisp norisp ionrsp oinrsp inorsp niorsp onirsp noirsp riosnp irosnp roisnp orisnp iorsnp oirsnp risonp irsonp rsionp srionp isronp sironp rosinp orsinp rsoinp sroinp osrinp sorinp iosrnp oisrnp isornp siornp osirnp soirnp rinsop irnsop rnisop nrisop inrsop nirsop risnop irsnop rsinop srinop isrnop sirnop rnsiop nrsiop rsniop srniop nsriop snriop insrop nisrop isnrop sinrop nsirop snirop ronsip ornsip rnosip nrosip onrsip norsip rosnip orsnip rsonip sronip osrnip sornip rnsoip nrsoip rsnoip srnoip nsroip snroip onsrip nosrip osnrip sonrip nsorip snorip ionsrp oinsrp inosrp niosrp onisrp noisrp iosnrp oisnrp isonrp sionrp osinrp soinrp insorp nisorp isnorp sinorp nsiorp sniorp onsirp nosirp osnirp sonirp nsoirp snoirp
Note: these 'words' (valid or invalid) are all the permutations of the word prions. These words are obtained by scrambling the letters in prions.