sperms pserms seprms esprms pesrms epsrms sprems psrems srpems rspems prsems rpsems serpms esrpms srepms rsepms erspms respms persms eprsms presms rpesms erpsms repsms spemrs psemrs sepmrs espmrs pesmrs epsmrs spmers psmers smpers mspers pmsers mpsers semprs esmprs smeprs mseprs emsprs mesprs pemsrs epmsrs pmesrs mpesrs empsrs mepsrs sprmes psrmes srpmes rspmes prsmes rpsmes spmres psmres smpres mspres pmsres mpsres srmpes rsmpes smrpes msrpes rmspes mrspes prmses rpmses pmrses mprses rmpses mrpses sermps esrmps sremps rsemps ersmps resmps semrps esmrps smerps mserps emsrps mesrps srmeps rsmeps smreps msreps rmseps mrseps ermsps remsps emrsps mersps rmesps mresps permss eprmss premss rpemss erpmss repmss pemrss epmrss pmerss mperss emprss meprss prmess rpmess pmress mpress rmpess mrpess ermpss rempss emrpss merpss rmepss mrepss spersm psersm seprsm esprsm pesrsm epsrsm spresm psresm srpesm rspesm prsesm rpsesm serpsm esrpsm srepsm rsepsm erspsm respsm perssm eprssm pressm rpessm erpssm repssm spesrm psesrm sepsrm espsrm pessrm epssrm spserm psserm ssperm ssperm psserm spserm sesprm essprm sseprm sseprm essprm sesprm pessrm epssrm psesrm spesrm espsrm sepsrm sprsem psrsem srpsem rspsem prssem rpssem spsrem pssrem ssprem ssprem pssrem spsrem srspem rsspem ssrpem ssrpem rsspem srspem prssem rpssem psrsem sprsem rspsem srpsem serspm esrspm srespm rsespm ersspm resspm sesrpm essrpm sserpm sserpm essrpm sesrpm srsepm rssepm ssrepm ssrepm rssepm srsepm ersspm resspm esrspm serspm rsespm srespm perssm eprssm pressm rpessm erpssm repssm pesrsm epsrsm psersm spersm esprsm seprsm prsesm rpsesm psresm spresm rspesm srpesm erspsm respsm esrpsm serpsm rsepsm srepsm spemsr psemsr sepmsr espmsr pesmsr epsmsr spmesr psmesr smpesr mspesr pmsesr mpsesr sempsr esmpsr smepsr msepsr emspsr mespsr pemssr epmssr pmessr mpessr empssr mepssr spesmr psesmr sepsmr espsmr pessmr epssmr spsemr pssemr sspemr sspemr pssemr spsemr sespmr esspmr ssepmr ssepmr esspmr sespmr pessmr epssmr psesmr spesmr espsmr sepsmr spmser psmser smpser mspser pmsser mpsser spsmer pssmer sspmer sspmer pssmer spsmer smsper mssper ssmper ssmper mssper smsper pmsser mpsser psmser spmser mspser smpser semspr esmspr smespr msespr emsspr messpr sesmpr essmpr ssempr ssempr essmpr sesmpr smsepr mssepr ssmepr ssmepr mssepr smsepr emsspr messpr esmspr semspr msespr smespr pemssr epmssr pmessr mpessr empssr mepssr pesmsr epsmsr psemsr spemsr espmsr sepmsr pmsesr mpsesr psmesr spmesr mspesr smpesr emspsr mespsr esmpsr sempsr msepsr smepsr sprmse psrmse srpmse rspmse prsmse rpsmse spmrse psmrse smprse msprse pmsrse mpsrse srmpse rsmpse smrpse msrpse rmspse mrspse prmsse rpmsse pmrsse mprsse rmpsse mrpsse sprsme psrsme srpsme rspsme prssme rpssme spsrme pssrme ssprme ssprme pssrme spsrme srspme rsspme ssrpme ssrpme rsspme srspme prssme rpssme psrsme sprsme rspsme srpsme spmsre psmsre smpsre mspsre pmssre mpssre spsmre pssmre sspmre sspmre pssmre spsmre smspre msspre ssmpre ssmpre msspre smspre pmssre mpssre psmsre spmsre mspsre smpsre srmspe rsmspe smrspe msrspe rmsspe mrsspe srsmpe rssmpe ssrmpe ssrmpe rssmpe srsmpe smsrpe mssrpe ssmrpe ssmrpe mssrpe smsrpe rmsspe mrsspe rsmspe srmspe msrspe smrspe prmsse rpmsse pmrsse mprsse rmpsse mrpsse prsmse rpsmse psrmse sprmse rspmse srpmse pmsrse mpsrse psmrse spmrse msprse smprse rmspse mrspse rsmpse srmpse msrpse smrpse sermsp esrmsp sremsp rsemsp ersmsp resmsp semrsp esmrsp smersp msersp emsrsp mesrsp srmesp rsmesp smresp msresp rmsesp mrsesp ermssp remssp emrssp merssp rmessp mressp sersmp esrsmp sresmp rsesmp erssmp ressmp sesrmp essrmp ssermp ssermp essrmp sesrmp srsemp rssemp ssremp ssremp rssemp srsemp erssmp ressmp esrsmp sersmp rsesmp sresmp semsrp esmsrp smesrp msesrp emssrp messrp sesmrp essmrp ssemrp ssemrp essmrp sesmrp smserp msserp ssmerp ssmerp msserp smserp emssrp messrp esmsrp semsrp msesrp smesrp srmsep rsmsep smrsep msrsep rmssep mrssep srsmep rssmep ssrmep ssrmep rssmep srsmep smsrep mssrep ssmrep ssmrep mssrep smsrep rmssep mrssep rsmsep srmsep msrsep smrsep ermssp remssp emrssp merssp rmessp mressp ersmsp resmsp esrmsp sermsp rsemsp sremsp emsrsp mesrsp esmrsp semrsp msersp smersp rmsesp mrsesp rsmesp srmesp msresp smresp permss eprmss premss rpemss erpmss repmss pemrss epmrss pmerss mperss emprss meprss prmess rpmess pmress mpress rmpess mrpess ermpss rempss emrpss merpss rmepss mrepss persms eprsms presms rpesms erpsms repsms pesrms epsrms pserms sperms esprms seprms prsems rpsems psrems sprems rspems srpems erspms respms esrpms serpms rsepms srepms pemsrs epmsrs pmesrs mpesrs empsrs mepsrs pesmrs epsmrs psemrs spemrs espmrs sepmrs pmsers mpsers psmers spmers mspers smpers emsprs mesprs esmprs semprs mseprs smeprs prmses rpmses pmrses mprses rmpses mrpses prsmes rpsmes psrmes sprmes rspmes srpmes pmsres mpsres psmres spmres mspres smpres rmspes mrspes rsmpes srmpes msrpes smrpes ermsps remsps emrsps mersps rmesps mresps ersmps resmps esrmps sermps rsemps sremps emsrps mesrps esmrps semrps mserps smerps rmseps mrseps rsmeps srmeps msreps smreps
Note: these 'words' (valid or invalid) are all the permutations of the word sperms. These words are obtained by scrambling the letters in sperms.