parev aprev praev rpaev arpev rapev paerv aperv pearv eparv aeprv eaprv preav rpeav perav eprav repav erpav arepv raepv aerpv earpv reapv erapv parve aprve prave rpave arpve rapve pavre apvre pvare vpare avpre vapre prvae rpvae pvrae vprae rvpae vrpae arvpe ravpe avrpe varpe rvape vrape paevr apevr peavr epavr aepvr eapvr paver apver pvaer vpaer avper vaper pevar epvar pvear vpear evpar vepar aevpr eavpr avepr vaepr evapr veapr preva rpeva perva eprva repva erpva prvea rpvea pvrea vprea rvpea vrpea pevra epvra pvera vpera evpra vepra revpa ervpa rvepa vrepa evrpa verpa arevp raevp aervp earvp reavp eravp arvep ravep avrep varep rvaep vraep aevrp eavrp averp vaerp evarp vearp revap ervap rveap vreap evrap verap
Note: these 'words' (valid or invalid) are all the permutations of the word parev. These words are obtained by scrambling the letters in parev.