perms eprms prems rpems erpms repms pemrs epmrs pmers mpers emprs meprs prmes rpmes pmres mpres rmpes mrpes ermps remps emrps merps rmeps mreps persm eprsm presm rpesm erpsm repsm pesrm epsrm pserm sperm esprm seprm prsem rpsem psrem sprem rspem srpem erspm respm esrpm serpm rsepm srepm pemsr epmsr pmesr mpesr empsr mepsr pesmr epsmr psemr spemr espmr sepmr pmser mpser psmer spmer msper smper emspr mespr esmpr sempr msepr smepr prmse rpmse pmrse mprse rmpse mrpse prsme rpsme psrme sprme rspme srpme pmsre mpsre psmre spmre mspre smpre rmspe mrspe rsmpe srmpe msrpe smrpe ermsp remsp emrsp mersp rmesp mresp ersmp resmp esrmp sermp rsemp sremp emsrp mesrp esmrp semrp mserp smerp rmsep mrsep rsmep srmep msrep smrep
Note: these 'words' (valid or invalid) are all the permutations of the word perms. These words are obtained by scrambling the letters in perms.