primn rpimn pirmn iprmn ripmn irpmn prmin rpmin pmrin mprin rmpin mrpin pimrn ipmrn pmirn mpirn imprn miprn rimpn irmpn rmipn mripn imrpn mirpn prinm rpinm pirnm iprnm ripnm irpnm prnim rpnim pnrim nprim rnpim nrpim pinrm ipnrm pnirm npirm inprm niprm rinpm irnpm rnipm nripm inrpm nirpm prmni rpmni pmrni mprni rmpni mrpni prnmi rpnmi pnrmi nprmi rnpmi nrpmi pmnri mpnri pnmri npmri mnpri nmpri rmnpi mrnpi rnmpi nrmpi mnrpi nmrpi pimnr ipmnr pminr mpinr impnr mipnr pinmr ipnmr pnimr npimr inpmr nipmr pmnir mpnir pnmir npmir mnpir nmpir imnpr minpr inmpr nimpr mnipr nmipr rimnp irmnp rminp mrinp imrnp mirnp rinmp irnmp rnimp nrimp inrmp nirmp rmnip mrnip rnmip nrmip mnrip nmrip imnrp minrp inmrp nimrp mnirp nmirp
Note: these 'words' (valid or invalid) are all the permutations of the word primn. These words are obtained by scrambling the letters in primn.