perve eprve preve rpeve erpve repve pevre epvre pvere vpere evpre vepre prvee rpvee pvree vpree rvpee vrpee ervpe revpe evrpe verpe rvepe vrepe perev eprev preev rpeev erpev repev peerv eperv peerv eperv eeprv eeprv preev rpeev perev eprev repev erpev erepv reepv eerpv eerpv reepv erepv pever epver pveer vpeer evper veper peevr epevr peevr epevr eepvr eepvr pveer vpeer pever epver veper evper evepr veepr eevpr eevpr veepr evepr prvee rpvee pvree vpree rvpee vrpee preve rpeve perve eprve repve erpve pvere vpere pevre epvre vepre evpre rvepe vrepe revpe ervpe verpe evrpe ervep revep evrep verep rveep vreep erevp reevp eervp eervp reevp erevp everp veerp eevrp eevrp veerp everp rveep vreep revep ervep verep evrep
Note: these 'words' (valid or invalid) are all the permutations of the word perve. These words are obtained by scrambling the letters in perve.