priors rpiors pirors iprors ripors irpors proirs rpoirs porirs oprirs ropirs orpirs piorrs iporrs poirrs opirrs ioprrs oiprrs rioprs iroprs roiprs oriprs iorprs oirprs priros rpiros pirros iprros ripros irpros prrios rprios prrios rprios rrpios rrpios pirros iprros priros rpiros irpros ripros rirpos irrpos rripos rripos irrpos rirpos proris rporis porris oprris ropris orpris prrois rprois prrois rprois rrpois rrpois porris oprris proris rporis orpris ropris rorpis orrpis rropis rropis orrpis rorpis piorrs iporrs poirrs opirrs ioprrs oiprrs pirors iprors priors rpiors irpors ripors porirs oprirs proirs rpoirs orpirs ropirs iorprs oirprs iroprs rioprs oriprs roiprs riorps irorps roirps orirps iorrps oirrps rirops irrops rriops rriops irrops rirops rorips orrips rroips rroips orrips rorips iorrps oirrps irorps riorps orirps roirps priosr rpiosr pirosr iprosr riposr irposr proisr rpoisr porisr oprisr ropisr orpisr piorsr iporsr poirsr opirsr ioprsr oiprsr riopsr iropsr roipsr oripsr iorpsr oirpsr prisor rpisor pirsor iprsor ripsor irpsor prsior rpsior psrior sprior rspior srpior pisror ipsror psiror spiror ispror sipror rispor irspor rsipor sripor isrpor sirpor prosir rposir porsir oprsir ropsir orpsir prsoir rpsoir psroir sproir rspoir srpoir posrir opsrir psorir sporir osprir soprir rospir orspir rsopir sropir osrpir sorpir piosrr iposrr poisrr opisrr iopsrr oipsrr pisorr ipsorr psiorr spiorr isporr siporr posirr opsirr psoirr spoirr ospirr sopirr iosprr oisprr isoprr sioprr osiprr soiprr riospr irospr roispr orispr iorspr oirspr risopr irsopr rsiopr sriopr isropr siropr rosipr orsipr rsoipr sroipr osripr soripr iosrpr oisrpr isorpr siorpr osirpr soirpr prirso rpirso pirrso iprrso riprso irprso prriso rpriso prriso rpriso rrpiso rrpiso pirrso iprrso prirso rpirso irprso riprso rirpso irrpso rripso rripso irrpso rirpso prisro rpisro pirsro iprsro ripsro irpsro prsiro rpsiro psriro spriro rspiro srpiro pisrro ipsrro psirro spirro isprro siprro rispro irspro rsipro sripro isrpro sirpro prrsio rprsio prrsio rprsio rrpsio rrpsio prsrio rpsrio psrrio sprrio rsprio srprio prsrio rpsrio psrrio sprrio rsprio srprio rrspio rrspio rsrpio srrpio rsrpio srrpio pirsro iprsro prisro rpisro irpsro ripsro pisrro ipsrro psirro spirro isprro siprro prsiro rpsiro psriro spriro rspiro srpiro irspro rispro isrpro sirpro rsipro sripro rirspo irrspo rrispo rrispo irrspo rirspo risrpo irsrpo rsirpo srirpo isrrpo sirrpo rrsipo rrsipo rsripo srripo rsripo srripo irsrpo risrpo isrrpo sirrpo rsirpo srirpo prorsi rporsi porrsi oprrsi roprsi orprsi prrosi rprosi prrosi rprosi rrposi rrposi porrsi oprrsi prorsi rporsi orprsi roprsi rorpsi orrpsi rropsi rropsi orrpsi rorpsi prosri rposri porsri oprsri ropsri orpsri prsori rpsori psrori sprori rspori srpori posrri opsrri psorri sporri osprri soprri rospri orspri rsopri sropri osrpri sorpri prrsoi rprsoi prrsoi rprsoi rrpsoi rrpsoi prsroi rpsroi psrroi sprroi rsproi srproi prsroi rpsroi psrroi sprroi rsproi srproi rrspoi rrspoi rsrpoi srrpoi rsrpoi srrpoi porsri oprsri prosri rposri orpsri ropsri posrri opsrri psorri sporri osprri soprri prsori rpsori psrori sprori rspori srpori orspri rospri osrpri sorpri rsopri sropri rorspi orrspi rrospi rrospi orrspi rorspi rosrpi orsrpi rsorpi srorpi osrrpi sorrpi rrsopi rrsopi rsropi srropi rsropi srropi orsrpi rosrpi osrrpi sorrpi rsorpi srorpi piorsr iporsr poirsr opirsr ioprsr oiprsr pirosr iprosr priosr rpiosr irposr riposr porisr oprisr proisr rpoisr orpisr ropisr iorpsr oirpsr iropsr riopsr oripsr roipsr piosrr iposrr poisrr opisrr iopsrr oipsrr pisorr ipsorr psiorr spiorr isporr siporr posirr opsirr psoirr spoirr ospirr sopirr iosprr oisprr isoprr sioprr osiprr soiprr pirsor iprsor prisor rpisor irpsor ripsor pisror ipsror psiror spiror ispror sipror prsior rpsior psrior sprior rspior srpior irspor rispor isrpor sirpor rsipor sripor porsir oprsir prosir rposir orpsir ropsir posrir opsrir psorir sporir osprir soprir prsoir rpsoir psroir sproir rspoir srpoir orspir rospir osrpir sorpir rsopir sropir iorspr oirspr irospr riospr orispr roispr iosrpr oisrpr isorpr siorpr osirpr soirpr irsopr risopr isropr siropr rsiopr sriopr orsipr rosipr osripr soripr rsoipr sroipr riorsp irorsp roirsp orirsp iorrsp oirrsp rirosp irrosp rriosp rriosp irrosp rirosp rorisp orrisp rroisp rroisp orrisp rorisp iorrsp oirrsp irorsp riorsp orirsp roirsp riosrp irosrp roisrp orisrp iorsrp oirsrp risorp irsorp rsiorp sriorp isrorp sirorp rosirp orsirp rsoirp sroirp osrirp sorirp iosrrp oisrrp isorrp siorrp osirrp soirrp rirsop irrsop rrisop rrisop irrsop rirsop risrop irsrop rsirop srirop isrrop sirrop rrsiop rrsiop rsriop srriop rsriop srriop irsrop risrop isrrop sirrop rsirop srirop rorsip orrsip rrosip rrosip orrsip rorsip rosrip orsrip rsorip srorip osrrip sorrip rrsoip rrsoip rsroip srroip rsroip srroip orsrip rosrip osrrip sorrip rsorip srorip iorsrp oirsrp irosrp riosrp orisrp roisrp iosrrp oisrrp isorrp siorrp osirrp soirrp irsorp risorp isrorp sirorp rsiorp sriorp orsirp rosirp osrirp sorirp rsoirp sroirp
Note: these 'words' (valid or invalid) are all the permutations of the word priors. These words are obtained by scrambling the letters in priors.