petres eptres pteres tperes etpres tepres pertes eprtes pretes rpetes erptes reptes ptrees tprees prtees rptees trpees rtpees etrpes terpes ertpes retpes trepes rtepes peters epters pteers tpeers etpers tepers peetrs epetrs peetrs epetrs eeptrs eeptrs pteers tpeers peters epters tepers etpers eteprs teeprs eetprs eetprs teeprs eteprs perets eprets preets rpeets erpets repets peerts eperts peerts eperts eeprts eeprts preets rpeets perets eprets repets erpets erepts reepts eerpts eerpts reepts erepts ptrees tprees prtees rptees trpees rtpees pteres tperes petres eptres tepres etpres pretes rpetes pertes eprtes reptes erptes trepes rtepes terpes etrpes retpes ertpes etreps tereps erteps reteps treeps rteeps eterps teerps eetrps eetrps teerps eterps eretps reetps eertps eertps reetps eretps treeps rteeps tereps etreps reteps erteps petrse eptrse pterse tperse etprse teprse pertse eprtse pretse rpetse erptse reptse ptrese tprese prtese rptese trpese rtpese etrpse terpse ertpse retpse trepse rtepse petsre eptsre ptesre tpesre etpsre tepsre pestre epstre psetre spetre esptre septre ptsere tpsere pstere sptere tspere stpere etspre tespre estpre setpre tsepre stepre perste eprste preste rpeste erpste repste pesrte epsrte pserte sperte esprte seprte prsete rpsete psrete sprete rspete srpete erspte respte esrpte serpte rsepte srepte ptrsee tprsee prtsee rptsee trpsee rtpsee ptsree tpsree pstree sptree tspree stpree prstee rpstee psrtee sprtee rsptee srptee trspee rtspee tsrpee strpee rstpee srtpee etrspe terspe ertspe retspe trespe rtespe etsrpe tesrpe estrpe setrpe tserpe sterpe erstpe restpe esrtpe sertpe rsetpe sretpe trsepe rtsepe tsrepe strepe rstepe srtepe petesr eptesr pteesr tpeesr etpesr tepesr peetsr epetsr peetsr epetsr eeptsr eeptsr pteesr tpeesr petesr eptesr tepesr etpesr etepsr teepsr eetpsr eetpsr teepsr etepsr petser eptser pteser tpeser etpser tepser pester epster pseter speter espter septer ptseer tpseer psteer spteer tspeer stpeer etsper tesper estper setper tseper steper peestr epestr peestr epestr eepstr eepstr pesetr epsetr pseetr speetr espetr sepetr pesetr epsetr pseetr speetr espetr sepetr eesptr eesptr eseptr seeptr eseptr seeptr pteser tpeser petser eptser tepser etpser ptseer tpseer psteer spteer tspeer stpeer pester epster pseter speter espter septer tesper etsper tseper steper estper setper etespr teespr eetspr eetspr teespr etespr etsepr tesepr estepr setepr tseepr steepr eestpr eestpr esetpr seetpr esetpr seetpr tesepr etsepr tseepr steepr estepr setepr perest eprest preest rpeest erpest repest peerst eperst peerst eperst eeprst eeprst preest rpeest perest eprest repest erpest erepst reepst eerpst eerpst reepst erepst perset eprset preset rpeset erpset repset pesret epsret pseret speret espret sepret prseet rpseet psreet spreet rspeet srpeet erspet respet esrpet serpet rsepet srepet peesrt epesrt peesrt epesrt eepsrt eepsrt pesert epsert pseert speert espert sepert pesert epsert pseert speert espert sepert eesprt eesprt eseprt seeprt eseprt seeprt preset rpeset perset eprset repset erpset prseet rpseet psreet spreet rspeet srpeet pesret epsret pseret speret espret sepret respet erspet rsepet srepet esrpet serpet erespt reespt eerspt eerspt reespt erespt ersept resept esrept serept rseept sreept eesrpt eesrpt eserpt seerpt eserpt seerpt resept ersept rseept sreept esrept serept ptrese tprese prtese rptese trpese rtpese pterse tperse petrse eptrse teprse etprse pretse rpetse pertse eprtse reptse erptse trepse rtepse terpse etrpse retpse ertpse ptrsee tprsee prtsee rptsee trpsee rtpsee ptsree tpsree pstree sptree tspree stpree prstee rpstee psrtee sprtee rsptee srptee trspee rtspee tsrpee strpee rstpee srtpee ptesre tpesre petsre eptsre tepsre etpsre ptsere tpsere pstere sptere tspere stpere pestre epstre psetre spetre esptre septre tespre etspre tsepre stepre estpre setpre preste rpeste perste eprste repste erpste prsete rpsete psrete sprete rspete srpete pesrte epsrte pserte sperte esprte seprte respte erspte rsepte srepte esrpte serpte trespe rtespe terspe etrspe retspe ertspe trsepe rtsepe tsrepe strepe rstepe srtepe tesrpe etsrpe tserpe sterpe estrpe setrpe restpe erstpe rsetpe sretpe esrtpe sertpe etresp teresp ertesp retesp treesp rteesp etersp teersp eetrsp eetrsp teersp etersp eretsp reetsp eertsp eertsp reetsp eretsp treesp rteesp teresp etresp retesp ertesp etrsep tersep ertsep retsep tresep rtesep etsrep tesrep estrep setrep tserep sterep erstep restep esrtep sertep rsetep sretep trseep rtseep tsreep streep rsteep srteep etesrp teesrp eetsrp eetsrp teesrp etesrp etserp teserp esterp seterp tseerp steerp eestrp eestrp esetrp seetrp esetrp seetrp teserp etserp tseerp steerp esterp seterp erestp reestp eerstp eerstp reestp erestp ersetp resetp esretp seretp rseetp sreetp eesrtp eesrtp esertp seertp esertp seertp resetp ersetp rseetp sreetp esretp seretp tresep rtesep tersep etrsep retsep ertsep trseep rtseep tsreep streep rsteep srteep tesrep etsrep tserep sterep estrep setrep restep erstep rsetep sretep esrtep sertep
Note: these 'words' (valid or invalid) are all the permutations of the word petres. These words are obtained by scrambling the letters in petres.