impro mipro ipmro pimro mpiro pmiro imrpo mirpo irmpo rimpo mripo rmipo iprmo pirmo irpmo ripmo primo rpimo mprio pmrio mrpio rmpio prmio rpmio impor mipor ipmor pimor mpior pmior imopr miopr iompr oimpr moipr omipr ipomr piomr iopmr oipmr poimr opimr mpoir pmoir mopir ompir pomir opmir imrop mirop irmop rimop mriop rmiop imorp miorp iomrp oimrp moirp omirp iromp riomp iormp oirmp roimp orimp mroip rmoip morip omrip romip ormip iprom pirom irpom ripom priom rpiom iporm piorm ioprm oiprm poirm opirm iropm riopm iorpm oirpm roipm oripm proim rpoim porim oprim ropim orpim mproi pmroi mrpoi rmpoi prmoi rpmoi mpori pmori mopri ompri pomri opmri mropi rmopi morpi omrpi rompi ormpi promi rpomi pormi oprmi ropmi orpmi
Note: these 'words' (valid or invalid) are all the permutations of the word impro. These words are obtained by scrambling the letters in impro.