doabs odabs daobs adobs oadbs aodbs dobas odbas dboas bdoas obdas bodas dabos adbos dbaos bdaos abdos bados oabds aobds obads boads abods baods doasb odasb daosb adosb oadsb aodsb dosab odsab dsoab sdoab osdab sodab dasob adsob dsaob sdaob asdob sadob oasdb aosdb osadb soadb asodb saodb dobsa odbsa dbosa bdosa obdsa bodsa dosba odsba dsoba sdoba osdba sodba dbsoa bdsoa dsboa sdboa bsdoa sbdoa obsda bosda osbda sobda bsoda sboda dabso adbso dbaso bdaso abdso badso dasbo adsbo dsabo sdabo asdbo sadbo dbsao bdsao dsbao sdbao bsdao sbdao absdo basdo asbdo sabdo bsado sbado oabsd aobsd obasd boasd abosd baosd oasbd aosbd osabd soabd asobd saobd obsad bosad osbad sobad bsoad sboad absod basod asbod sabod bsaod sbaod
Note: these 'words' (valid or invalid) are all the permutations of the word doabs. These words are obtained by scrambling the letters in doabs.