ditas idtas dtias tdias itdas tidas diats idats daits adits iadts aidts dtais tdais datis adtis tadis atdis itads tiads iatds aitds taids atids ditsa idtsa dtisa tdisa itdsa tidsa dista idsta dsita sdita isdta sidta dtsia tdsia dstia sdtia tsdia stdia itsda tisda istda sitda tsida stida diast idast daist adist iadst aidst disat idsat dsiat sdiat isdat sidat dasit adsit dsait sdait asdit sadit iasdt aisdt isadt siadt asidt saidt dtasi tdasi datsi adtsi tadsi atdsi dtsai tdsai dstai sdtai tsdai stdai dasti adsti dsati sdati asdti sadti tasdi atsdi tsadi stadi astdi satdi itasd tiasd iatsd aitsd taisd atisd itsad tisad istad sitad tsiad stiad iastd aistd isatd siatd asitd saitd tasid atsid tsaid staid astid satid
Note: these 'words' (valid or invalid) are all the permutations of the word ditas. These words are obtained by scrambling the letters in ditas.