bupers ubpers bpuers pbuers upbers pubers bueprs ubeprs beuprs ebuprs uebprs eubprs bpeurs pbeurs bepurs ebpurs peburs epburs upebrs puebrs uepbrs eupbrs peubrs epubrs bupres ubpres bpures pbures upbres pubres burpes ubrpes brupes rbupes urbpes rubpes bprues pbrues brpues rbpues prbues rpbues uprbes purbes urpbes rupbes prubes rpubes buerps uberps beurps eburps uebrps eubrps bureps ubreps brueps rbueps urbeps rubeps berups ebrups breups rbeups erbups rebups uerbps eurbps urebps ruebps erubps reubps bperus pberus beprus ebprus pebrus epbrus bpreus pbreus brpeus rbpeus prbeus rpbeus berpus ebrpus brepus rbepus erbpus rebpus perbus eprbus prebus rpebus erpbus repbus uperbs puerbs ueprbs euprbs peurbs epurbs uprebs purebs urpebs rupebs pruebs rpuebs uerpbs eurpbs urepbs ruepbs erupbs reupbs perubs eprubs preubs rpeubs erpubs repubs bupesr ubpesr bpuesr pbuesr upbesr pubesr buepsr ubepsr beupsr ebupsr uebpsr eubpsr bpeusr pbeusr bepusr ebpusr pebusr epbusr upebsr puebsr uepbsr eupbsr peubsr epubsr bupser ubpser bpuser pbuser upbser pubser busper ubsper bsuper sbuper usbper subper bpsuer pbsuer bspuer sbpuer psbuer spbuer upsber pusber uspber supber psuber spuber buespr ubespr beuspr ebuspr uebspr eubspr busepr ubsepr bsuepr sbuepr usbepr subepr besupr ebsupr bseupr sbeupr esbupr sebupr uesbpr eusbpr usebpr suebpr esubpr seubpr bpesur pbesur bepsur ebpsur pebsur epbsur bpseur pbseur bspeur sbpeur psbeur spbeur bespur ebspur bsepur sbepur esbpur sebpur pesbur epsbur psebur spebur espbur sepbur upesbr puesbr uepsbr eupsbr peusbr epusbr upsebr pusebr uspebr supebr psuebr spuebr uespbr euspbr usepbr suepbr esupbr seupbr pesubr epsubr pseubr speubr espubr sepubr buprse ubprse bpurse pburse upbrse pubrse burpse ubrpse brupse rbupse urbpse rubpse bpruse pbruse brpuse rbpuse prbuse rpbuse uprbse purbse urpbse rupbse prubse rpubse bupsre ubpsre bpusre pbusre upbsre pubsre buspre ubspre bsupre sbupre usbpre subpre bpsure pbsure bspure sbpure psbure spbure upsbre pusbre uspbre supbre psubre spubre burspe ubrspe bruspe rbuspe urbspe rubspe busrpe ubsrpe bsurpe sburpe usbrpe subrpe brsupe rbsupe bsrupe sbrupe rsbupe srbupe ursbpe rusbpe usrbpe surbpe rsubpe srubpe bprsue pbrsue brpsue rbpsue prbsue rpbsue bpsrue pbsrue bsprue sbprue psbrue spbrue brspue rbspue bsrpue sbrpue rsbpue srbpue prsbue rpsbue psrbue sprbue rspbue srpbue uprsbe pursbe urpsbe rupsbe prusbe rpusbe upsrbe pusrbe usprbe suprbe psurbe spurbe urspbe ruspbe usrpbe surpbe rsupbe srupbe prsube rpsube psrube sprube rspube srpube buersp ubersp beursp ebursp uebrsp eubrsp buresp ubresp bruesp rbuesp urbesp rubesp berusp ebrusp breusp rbeusp erbusp rebusp uerbsp eurbsp urebsp ruebsp erubsp reubsp buesrp ubesrp beusrp ebusrp uebsrp eubsrp buserp ubserp bsuerp sbuerp usberp suberp besurp ebsurp bseurp sbeurp esburp seburp uesbrp eusbrp usebrp suebrp esubrp seubrp bursep ubrsep brusep rbusep urbsep rubsep busrep ubsrep bsurep sburep usbrep subrep brsuep rbsuep bsruep sbruep rsbuep srbuep ursbep rusbep usrbep surbep rsubep srubep bersup ebrsup bresup rbesup erbsup rebsup besrup ebsrup bserup sberup esbrup sebrup brseup rbseup bsreup sbreup rsbeup srbeup ersbup resbup esrbup serbup rsebup srebup uersbp eursbp uresbp ruesbp erusbp reusbp uesrbp eusrbp userbp suerbp esurbp seurbp ursebp rusebp usrebp surebp rsuebp sruebp ersubp resubp esrubp serubp rseubp sreubp bpersu pbersu beprsu ebprsu pebrsu epbrsu bpresu pbresu brpesu rbpesu prbesu rpbesu berpsu ebrpsu brepsu rbepsu erbpsu rebpsu perbsu eprbsu prebsu rpebsu erpbsu repbsu bpesru pbesru bepsru ebpsru pebsru epbsru bpseru pbseru bsperu sbperu psberu spberu bespru ebspru bsepru sbepru esbpru sebpru pesbru epsbru psebru spebru espbru sepbru bprseu pbrseu brpseu rbpseu prbseu rpbseu bpsreu pbsreu bspreu sbpreu psbreu spbreu brspeu rbspeu bsrpeu sbrpeu rsbpeu srbpeu prsbeu rpsbeu psrbeu sprbeu rspbeu srpbeu berspu ebrspu brespu rbespu erbspu rebspu besrpu ebsrpu bserpu sberpu esbrpu sebrpu brsepu rbsepu bsrepu sbrepu rsbepu srbepu ersbpu resbpu esrbpu serbpu rsebpu srebpu persbu eprsbu presbu rpesbu erpsbu repsbu pesrbu epsrbu pserbu sperbu esprbu seprbu prsebu rpsebu psrebu sprebu rspebu srpebu erspbu respbu esrpbu serpbu rsepbu srepbu upersb puersb ueprsb euprsb peursb epursb upresb puresb urpesb rupesb pruesb rpuesb uerpsb eurpsb urepsb ruepsb erupsb reupsb perusb eprusb preusb rpeusb erpusb repusb upesrb puesrb uepsrb eupsrb peusrb epusrb upserb puserb usperb superb psuerb spuerb uesprb eusprb useprb sueprb esuprb seuprb pesurb epsurb pseurb speurb espurb sepurb uprseb purseb urpseb rupseb pruseb rpuseb upsreb pusreb uspreb supreb psureb spureb urspeb ruspeb usrpeb surpeb rsupeb srupeb prsueb rpsueb psrueb sprueb rspueb srpueb uerspb eurspb urespb ruespb eruspb reuspb uesrpb eusrpb userpb suerpb esurpb seurpb ursepb rusepb usrepb surepb rsuepb sruepb ersupb resupb esrupb serupb rseupb sreupb persub eprsub presub rpesub erpsub repsub pesrub epsrub pserub sperub esprub seprub prseub rpseub psreub spreub rspeub srpeub erspub respub esrpub serpub rsepub srepub
Note: these 'words' (valid or invalid) are all the permutations of the word bupers. These words are obtained by scrambling the letters in bupers.