ntdse tndse ndtse dntse tdnse dtnse ntsde tnsde nstde sntde tsnde stnde ndste dnste nsdte sndte dsnte sdnte tdsne dtsne tsdne stdne dstne sdtne ntdes tndes ndtes dntes tdnes dtnes nteds tneds netds entds tends etnds ndets dnets nedts endts dents ednts tdens dtens tedns etdns detns edtns ntsed tnsed nsted snted tsned stned ntesd tnesd netsd entsd tensd etnsd nsetd snetd nestd enstd sentd esntd tsend stend tesnd etsnd setnd estnd ndset dnset nsdet sndet dsnet sdnet ndest dnest nedst endst denst ednst nsedt snedt nesdt ensdt sendt esndt dsent sdent desnt edsnt sednt esdnt tdsen dtsen tsden stden dsten sdten tdesn dtesn tedsn etdsn detsn edtsn tsedn stedn tesdn etsdn setdn estdn dsetn sdetn destn edstn sedtn esdtn
Note: these 'words' (valid or invalid) are all the permutations of the word ntdse. These words are obtained by scrambling the letters in ntdse.