perai eprai preai rpeai erpai repai peari epari paeri aperi eapri aepri praei rpaei parei aprei rapei arpei erapi reapi earpi aerpi raepi arepi peria epria preia rpeia erpia repia peira epira piera ipera eipra iepra priea rpiea pirea iprea ripea irpea eripa reipa eirpa ierpa riepa irepa peair epair paeir apeir eapir aepir peiar epiar piear ipear eipar iepar paier apier piaer ipaer aiper iaper eaipr aeipr eiapr ieapr aiepr iaepr praie rpaie parie aprie rapie arpie priae rpiae pirae iprae ripae irpae paire apire piare ipare aipre iapre raipe aripe riape irape airpe iarpe eraip reaip earip aerip raeip areip eriap reiap eirap ierap rieap ireap eairp aeirp eiarp iearp aierp iaerp raiep ariep riaep iraep airep iarep
Note: these 'words' (valid or invalid) are all the permutations of the word perai. These words are obtained by scrambling the letters in perai.