goprn ogprn gporn pgorn opgrn pogrn gorpn ogrpn gropn rgopn orgpn rogpn gpron pgron grpon rgpon prgon rpgon oprgn porgn orpgn ropgn progn rpogn gopnr ogpnr gponr pgonr opgnr pognr gonpr ognpr gnopr ngopr ongpr nogpr gpnor pgnor gnpor ngpor pngor npgor opngr pongr onpgr nopgr pnogr npogr gornp ogrnp gronp rgonp orgnp rognp gonrp ognrp gnorp ngorp ongrp nogrp grnop rgnop gnrop ngrop rngop nrgop orngp rongp onrgp norgp rnogp nrogp gprno pgrno grpno rgpno prgno rpgno gpnro pgnro gnpro ngpro pngro npgro grnpo rgnpo gnrpo ngrpo rngpo nrgpo prngo rpngo pnrgo nprgo rnpgo nrpgo oprng porng orpng ropng prong rpong opnrg ponrg onprg noprg pnorg nporg ornpg ronpg onrpg norpg rnopg nropg prnog rpnog pnrog nprog rnpog nrpog
Note: these 'words' (valid or invalid) are all the permutations of the word goprn. These words are obtained by scrambling the letters in goprn.