prunes rpunes purnes uprnes rupnes urpnes prnues rpnues pnrues nprues rnpues nrpues punres upnres pnures npures unpres nupres runpes urnpes rnupes nrupes unrpes nurpes pruens rpuens purens uprens rupens urpens preuns rpeuns peruns epruns repuns erpuns puerns uperns peurns epurns ueprns euprns ruepns urepns reupns erupns uerpns eurpns prneus rpneus pnreus npreus rnpeus nrpeus prenus rpenus pernus eprnus repnus erpnus pnerus nperus penrus epnrus neprus enprus rnepus nrepus renpus ernpus nerpus enrpus puners upners pnuers npuers unpers nupers puenrs upenrs peunrs epunrs uepnrs eupnrs pneurs npeurs penurs epnurs nepurs enpurs uneprs nueprs uenprs eunprs neuprs enuprs runeps urneps rnueps nrueps unreps nureps ruenps urenps reunps erunps uernps eurnps rneups nreups renups ernups nerups enrups unerps nuerps uenrps eunrps neurps enurps prunse rpunse purnse uprnse rupnse urpnse prnuse rpnuse pnruse npruse rnpuse nrpuse punrse upnrse pnurse npurse unprse nuprse runpse urnpse rnupse nrupse unrpse nurpse prusne rpusne pursne uprsne rupsne urpsne prsune rpsune psrune sprune rspune srpune pusrne upsrne psurne spurne usprne suprne ruspne urspne rsupne srupne usrpne surpne prnsue rpnsue pnrsue nprsue rnpsue nrpsue prsnue rpsnue psrnue sprnue rspnue srpnue pnsrue npsrue psnrue spnrue nsprue snprue rnspue nrspue rsnpue srnpue nsrpue snrpue punsre upnsre pnusre npusre unpsre nupsre pusnre upsnre psunre spunre uspnre supnre pnsure npsure psnure spnure nspure snpure unspre nuspre usnpre sunpre nsupre snupre runspe urnspe rnuspe nruspe unrspe nurspe rusnpe ursnpe rsunpe srunpe usrnpe surnpe rnsupe nrsupe rsnupe srnupe nsrupe snrupe unsrpe nusrpe usnrpe sunrpe nsurpe snurpe pruesn rpuesn puresn upresn rupesn urpesn preusn rpeusn perusn eprusn repusn erpusn puersn upersn peursn epursn ueprsn euprsn ruepsn urepsn reupsn erupsn uerpsn eurpsn prusen rpusen pursen uprsen rupsen urpsen prsuen rpsuen psruen spruen rspuen srpuen pusren upsren psuren spuren uspren supren ruspen urspen rsupen srupen usrpen surpen presun rpesun persun eprsun repsun erpsun prseun rpseun psreun spreun rspeun srpeun pesrun epsrun pserun sperun esprun seprun respun erspun rsepun srepun esrpun serpun puesrn upesrn peusrn epusrn uepsrn eupsrn pusern upsern psuern spuern uspern supern pesurn epsurn pseurn speurn espurn sepurn uesprn eusprn useprn sueprn esuprn seuprn ruespn urespn reuspn eruspn uerspn eurspn rusepn ursepn rsuepn sruepn usrepn surepn resupn ersupn rseupn sreupn esrupn serupn uesrpn eusrpn userpn suerpn esurpn seurpn prnesu rpnesu pnresu npresu rnpesu nrpesu prensu rpensu pernsu eprnsu repnsu erpnsu pnersu npersu penrsu epnrsu neprsu enprsu rnepsu nrepsu renpsu ernpsu nerpsu enrpsu prnseu rpnseu pnrseu nprseu rnpseu nrpseu prsneu rpsneu psrneu sprneu rspneu srpneu pnsreu npsreu psnreu spnreu nspreu snpreu rnspeu nrspeu rsnpeu srnpeu nsrpeu snrpeu presnu rpesnu persnu eprsnu repsnu erpsnu prsenu rpsenu psrenu sprenu rspenu srpenu pesrnu epsrnu psernu spernu esprnu seprnu respnu erspnu rsepnu srepnu esrpnu serpnu pnesru npesru pensru epnsru nepsru enpsru pnseru npseru psneru spneru nsperu snperu pesnru epsnru psenru spenru espnru sepnru nespru enspru nsepru snepru esnpru senpru rnespu nrespu renspu ernspu nerspu enrspu rnsepu nrsepu rsnepu srnepu nsrepu snrepu resnpu ersnpu rsenpu srenpu esrnpu sernpu nesrpu ensrpu nserpu snerpu esnrpu senrpu punesr upnesr pnuesr npuesr unpesr nupesr puensr upensr peunsr epunsr uepnsr eupnsr pneusr npeusr penusr epnusr nepusr enpusr unepsr nuepsr uenpsr eunpsr neupsr enupsr punser upnser pnuser npuser unpser nupser pusner upsner psuner spuner uspner supner pnsuer npsuer psnuer spnuer nspuer snpuer unsper nusper usnper sunper nsuper snuper puesnr upesnr peusnr epusnr uepsnr eupsnr pusenr upsenr psuenr spuenr uspenr supenr pesunr epsunr pseunr speunr espunr sepunr uespnr euspnr usepnr suepnr esupnr seupnr pnesur npesur pensur epnsur nepsur enpsur pnseur npseur psneur spneur nspeur snpeur pesnur epsnur psenur spenur espnur sepnur nespur enspur nsepur snepur esnpur senpur unespr nuespr uenspr eunspr neuspr enuspr unsepr nusepr usnepr sunepr nsuepr snuepr uesnpr eusnpr usenpr suenpr esunpr seunpr nesupr ensupr nseupr sneupr esnupr senupr runesp urnesp rnuesp nruesp unresp nuresp ruensp urensp reunsp erunsp uernsp eurnsp rneusp nreusp renusp ernusp nerusp enrusp unersp nuersp uenrsp eunrsp neursp enursp runsep urnsep rnusep nrusep unrsep nursep rusnep ursnep rsunep srunep usrnep surnep rnsuep nrsuep rsnuep srnuep nsruep snruep unsrep nusrep usnrep sunrep nsurep snurep ruesnp uresnp reusnp erusnp uersnp eursnp rusenp ursenp rsuenp sruenp usrenp surenp resunp ersunp rseunp sreunp esrunp serunp uesrnp eusrnp usernp suernp esurnp seurnp rnesup nresup rensup ernsup nersup enrsup rnseup nrseup rsneup srneup nsreup snreup resnup ersnup rsenup srenup esrnup sernup nesrup ensrup nserup snerup esnrup senrup unesrp nuesrp uensrp eunsrp neusrp enusrp unserp nuserp usnerp sunerp nsuerp snuerp uesnrp eusnrp usenrp suenrp esunrp seunrp nesurp ensurp nseurp sneurp esnurp senurp
Note: these 'words' (valid or invalid) are all the permutations of the word prunes. These words are obtained by scrambling the letters in prunes.