akdrb kadrb adkrb dakrb kdarb dkarb akrdb kardb arkdb rakdb kradb rkadb adrkb darkb ardkb radkb drakb rdakb kdrab dkrab krdab rkdab drkab rdkab akdbr kadbr adkbr dakbr kdabr dkabr akbdr kabdr abkdr bakdr kbadr bkadr adbkr dabkr abdkr badkr dbakr bdakr kdbar dkbar kbdar bkdar dbkar bdkar akrbd karbd arkbd rakbd krabd rkabd akbrd kabrd abkrd bakrd kbard bkard arbkd rabkd abrkd barkd rbakd brakd krbad rkbad kbrad bkrad rbkad brkad adrbk darbk ardbk radbk drabk rdabk adbrk dabrk abdrk badrk dbark bdark arbdk rabdk abrdk bardk rbadk bradk drbak rdbak dbrak bdrak rbdak brdak kdrba dkrba krdba rkdba drkba rdkba kdbra dkbra kbdra bkdra dbkra bdkra krbda rkbda kbrda bkrda rbkda brkda drbka rdbka dbrka bdrka rbdka brdka
Note: these 'words' (valid or invalid) are all the permutations of the word akdrb. These words are obtained by scrambling the letters in akdrb.