dants adnts dnats ndats andts nadts datns adtns dtans tdans atdns tadns dntas ndtas dtnas tdnas ntdas tndas antds natds atnds tands ntads tnads danst adnst dnast ndast andst nadst dasnt adsnt dsant sdant asdnt sadnt dnsat ndsat dsnat sdnat nsdat sndat ansdt nasdt asndt sandt nsadt snadt datsn adtsn dtasn tdasn atdsn tadsn dastn adstn dsatn sdatn asdtn sadtn dtsan tdsan dstan sdtan tsdan stdan atsdn tasdn astdn satdn tsadn stadn dntsa ndtsa dtnsa tdnsa ntdsa tndsa dnsta ndsta dsnta sdnta nsdta sndta dtsna tdsna dstna sdtna tsdna stdna ntsda tnsda nstda sntda tsnda stnda antsd natsd atnsd tansd ntasd tnasd anstd nastd asntd santd nsatd snatd atsnd tasnd astnd satnd tsand stand ntsad tnsad nstad sntad tsnad stnad
Note: these 'words' (valid or invalid) are all the permutations of the word dants. These words are obtained by scrambling the letters in dants.