dobie odbie dboie bdoie obdie bodie doibe odibe diobe idobe oidbe iodbe dbioe bdioe diboe idboe bidoe ibdoe obide boide oibde iobde biode ibode dobei odbei dboei bdoei obdei bodei doebi odebi deobi edobi oedbi eodbi dbeoi bdeoi deboi edboi bedoi ebdoi obedi boedi oebdi eobdi beodi ebodi doieb odieb dioeb idoeb oideb iodeb doeib odeib deoib edoib oedib eodib dieob ideob deiob ediob iedob eidob oiedb ioedb oeidb eoidb ieodb eiodb dbieo bdieo dibeo idbeo bideo ibdeo dbeio bdeio debio edbio bedio ebdio diebo idebo deibo edibo iedbo eidbo biedo ibedo beido ebido iebdo eibdo obied boied oibed iobed bioed iboed obeid boeid oebid eobid beoid eboid oiebd ioebd oeibd eoibd ieobd eiobd bieod ibeod beiod ebiod iebod eibod
Note: these 'words' (valid or invalid) are all the permutations of the word dobie. These words are obtained by scrambling the letters in dobie.