redba erdba rdeba dreba edrba derba rebda erbda rbeda breda ebrda berda rdbea drbea rbdea brdea dbrea bdrea edbra debra ebdra bedra dbera bdera redab erdab rdeab dreab edrab derab readb eradb raedb aredb eardb aerdb rdaeb draeb radeb ardeb dareb adreb edarb dearb eadrb aedrb daerb aderb rebad erbad rbead bread ebrad berad reabd erabd raebd arebd earbd aerbd rbaed braed rabed arbed bared abred ebard beard eabrd aebrd baerd aberd rdbae drbae rbdae brdae dbrae bdrae rdabe drabe radbe ardbe darbe adrbe rbade brade rabde arbde barde abrde dbare bdare dabre adbre badre abdre edbar debar ebdar bedar dbear bdear edabr deabr eadbr aedbr daebr adebr ebadr beadr eabdr aebdr baedr abedr dbaer bdaer daber adber bader abder
Note: these 'words' (valid or invalid) are all the permutations of the word redba. These words are obtained by scrambling the letters in redba.