pregur rpegur pergur eprgur repgur erpgur prgeur rpgeur pgreur gpreur rgpeur grpeur pegrur epgrur pgerur gperur egprur geprur regpur ergpur rgepur grepur egrpur gerpur preugr rpeugr perugr eprugr repugr erpugr pruegr rpuegr puregr upregr rupegr urpegr peurgr epurgr puergr upergr euprgr ueprgr reupgr erupgr ruepgr urepgr eurpgr uerpgr prguer rpguer pgruer gpruer rgpuer grpuer pruger rpuger purger uprger rupger urpger pgurer gpurer pugrer upgrer guprer ugprer rguper gruper rugper urgper gurper ugrper pegurr epgurr pgeurr gpeurr egpurr gepurr peugrr epugrr puegrr upegrr eupgrr uepgrr pguerr gpuerr pugerr upgerr guperr ugperr eguprr geuprr eugprr uegprr gueprr ugeprr regupr ergupr rgeupr greupr egrupr gerupr reugpr erugpr ruegpr uregpr eurgpr uergpr rguepr gruepr rugepr urgepr gurepr ugrepr egurpr geurpr eugrpr uegrpr guerpr ugerpr pregru rpegru pergru eprgru repgru erpgru prgeru rpgeru pgreru gpreru rgperu grperu pegrru epgrru pgerru gperru egprru geprru regpru ergpru rgepru grepru egrpru gerpru prergu rpergu perrgu eprrgu reprgu erprgu prregu rpregu prregu rpregu rrpegu rrpegu perrgu eprrgu prergu rpergu erprgu reprgu rerpgu errpgu rrepgu rrepgu errpgu rerpgu prgreu rpgreu pgrreu gprreu rgpreu grpreu prrgeu rprgeu prrgeu rprgeu rrpgeu rrpgeu pgrreu gprreu prgreu rpgreu grpreu rgpreu rgrpeu grrpeu rrgpeu rrgpeu grrpeu rgrpeu pegrru epgrru pgerru gperru egprru geprru pergru eprgru pregru rpegru erpgru repgru pgreru gpreru prgeru rpgeru grperu rgperu egrpru gerpru ergpru regpru grepru rgepru regrpu ergrpu rgerpu grerpu egrrpu gerrpu rergpu errgpu rregpu rregpu errgpu rergpu rgrepu grrepu rrgepu rrgepu grrepu rgrepu egrrpu gerrpu ergrpu regrpu grerpu rgerpu preurg rpeurg perurg eprurg repurg erpurg pruerg rpuerg purerg uprerg ruperg urperg peurrg epurrg puerrg uperrg euprrg ueprrg reuprg eruprg rueprg ureprg eurprg uerprg prerug rperug perrug eprrug reprug erprug prreug rpreug prreug rpreug rrpeug rrpeug perrug eprrug prerug rperug erprug reprug rerpug errpug rrepug rrepug errpug rerpug prureg rpureg purreg uprreg rupreg urpreg prrueg rprueg prrueg rprueg rrpueg rrpueg purreg uprreg prureg rpureg urpreg rupreg rurpeg urrpeg rrupeg rrupeg urrpeg rurpeg peurrg epurrg puerrg uperrg euprrg ueprrg perurg eprurg preurg rpeurg erpurg repurg purerg uprerg pruerg rpuerg urperg ruperg eurprg uerprg eruprg reuprg ureprg rueprg reurpg erurpg ruerpg urerpg eurrpg uerrpg rerupg errupg rreupg rreupg errupg rerupg rurepg urrepg rruepg rruepg urrepg rurepg eurrpg uerrpg erurpg reurpg urerpg ruerpg prgure rpgure pgrure gprure rgpure grpure prugre rpugre purgre uprgre rupgre urpgre pgurre gpurre pugrre upgrre guprre ugprre rgupre grupre rugpre urgpre gurpre ugrpre prgrue rpgrue pgrrue gprrue rgprue grprue prrgue rprgue prrgue rprgue rrpgue rrpgue pgrrue gprrue prgrue rpgrue grprue rgprue rgrpue grrpue rrgpue rrgpue grrpue rgrpue prurge rpurge purrge uprrge ruprge urprge prruge rpruge prruge rpruge rrpuge rrpuge purrge uprrge prurge rpurge urprge ruprge rurpge urrpge rrupge rrupge urrpge rurpge pgurre gpurre pugrre upgrre guprre ugprre pgrure gprure prgure rpgure grpure rgpure purgre uprgre prugre rpugre urpgre rupgre gurpre ugrpre grupre rgupre urgpre rugpre rgurpe grurpe rugrpe urgrpe gurrpe ugrrpe rgrupe grrupe rrgupe rrgupe grrupe rgrupe rurgpe urrgpe rrugpe rrugpe urrgpe rurgpe gurrpe ugrrpe grurpe rgurpe urgrpe rugrpe pegurr epgurr pgeurr gpeurr egpurr gepurr peugrr epugrr puegrr upegrr eupgrr uepgrr pguerr gpuerr pugerr upgerr guperr ugperr eguprr geuprr eugprr uegprr gueprr ugeprr pegrur epgrur pgerur gperur egprur geprur pergur eprgur pregur rpegur erpgur repgur pgreur gpreur prgeur rpgeur grpeur rgpeur egrpur gerpur ergpur regpur grepur rgepur peurgr epurgr puergr upergr euprgr ueprgr perugr eprugr preugr rpeugr erpugr repugr puregr upregr pruegr rpuegr urpegr rupegr eurpgr uerpgr erupgr reupgr urepgr ruepgr pgurer gpurer pugrer upgrer guprer ugprer pgruer gpruer prguer rpguer grpuer rgpuer purger uprger pruger rpuger urpger rupger gurper ugrper gruper rguper urgper rugper egurpr geurpr eugrpr uegrpr guerpr ugerpr egrupr gerupr ergupr regupr greupr rgeupr eurgpr uergpr erugpr reugpr uregpr ruegpr gurepr ugrepr gruepr rguepr urgepr rugepr regurp ergurp rgeurp greurp egrurp gerurp reugrp erugrp ruegrp uregrp eurgrp uergrp rguerp gruerp rugerp urgerp gurerp ugrerp egurrp geurrp eugrrp uegrrp guerrp ugerrp regrup ergrup rgerup grerup egrrup gerrup rergup errgup rregup rregup errgup rergup rgreup grreup rrgeup rrgeup grreup rgreup egrrup gerrup ergrup regrup grerup rgerup reurgp erurgp ruergp urergp eurrgp uerrgp rerugp errugp rreugp rreugp errugp rerugp ruregp urregp rruegp rruegp urregp ruregp eurrgp uerrgp erurgp reurgp urergp ruergp rgurep grurep rugrep urgrep gurrep ugrrep rgruep grruep rrguep rrguep grruep rgruep rurgep urrgep rrugep rrugep urrgep rurgep gurrep ugrrep grurep rgurep urgrep rugrep egurrp geurrp eugrrp uegrrp guerrp ugerrp egrurp gerurp ergurp regurp greurp rgeurp eurgrp uergrp erugrp reugrp uregrp ruegrp gurerp ugrerp gruerp rguerp urgerp rugerp
Note: these 'words' (valid or invalid) are all the permutations of the word pregur. These words are obtained by scrambling the letters in pregur.