atsdr tasdr astdr satdr tsadr stadr atdsr tadsr adtsr datsr tdasr dtasr asdtr sadtr adstr dastr sdatr dsatr tsdar stdar tdsar dtsar sdtar dstar atsrd tasrd astrd satrd tsard stard atrsd tarsd artsd ratsd trasd rtasd asrtd sartd arstd rastd sratd rsatd tsrad strad trsad rtsad srtad rstad atdrs tadrs adtrs datrs tdars dtars atrds tards artds ratds trads rtads adrts darts ardts radts drats rdats tdras dtras trdas rtdas drtas rdtas asdrt sadrt adsrt dasrt sdart dsart asrdt sardt arsdt rasdt sradt rsadt adrst darst ardst radst drast rdast sdrat dsrat srdat rsdat drsat rdsat tsdra stdra tdsra dtsra sdtra dstra tsrda strda trsda rtsda srtda rstda tdrsa dtrsa trdsa rtdsa drtsa rdtsa sdrta dsrta srdta rsdta drsta rdsta
Note: these 'words' (valid or invalid) are all the permutations of the word atsdr. These words are obtained by scrambling the letters in atsdr.