dorba odrba droba rdoba ordba rodba dobra odbra dbora bdora obdra bodra drboa rdboa dbroa bdroa rbdoa brdoa orbda robda obrda borda rboda broda dorab odrab droab rdoab ordab rodab doarb odarb daorb adorb oadrb aodrb draob rdaob darob adrob radob ardob oradb roadb oardb aordb raodb arodb dobar odbar dboar bdoar obdar bodar doabr odabr daobr adobr oadbr aodbr dbaor bdaor dabor adbor bador abdor obadr boadr oabdr aobdr baodr abodr drbao rdbao dbrao bdrao rbdao brdao drabo rdabo darbo adrbo radbo ardbo dbaro bdaro dabro adbro badro abdro rbado brado rabdo arbdo bardo abrdo orbad robad obrad borad rboad broad orabd roabd oarbd aorbd raobd arobd obard board oabrd aobrd baord abord rbaod braod rabod arbod barod abrod
Note: these 'words' (valid or invalid) are all the permutations of the word dorba. These words are obtained by scrambling the letters in dorba.