sadis asdis sdais dsais adsis dasis saids asids siads isads aisds iasds sdias dsias sidas isdas disas idsas adiss daiss aidss iadss diass idass sadsi asdsi sdasi dsasi adssi dassi sasdi assdi ssadi ssadi assdi sasdi sdsai dssai ssdai ssdai dssai sdsai adssi dassi asdsi sadsi dsasi sdasi saisd asisd siasd isasd aissd iassd sasid assid ssaid ssaid assid sasid sisad issad ssiad ssiad issad sisad aissd iassd asisd saisd isasd siasd sdisa dsisa sidsa isdsa dissa idssa sdsia dssia ssdia ssdia dssia sdsia sisda issda ssida ssida issda sisda dissa idssa dsisa sdisa isdsa sidsa adiss daiss aidss iadss diass idass adsis dasis asdis sadis dsais sdais aisds iasds asids saids isads siads disas idsas dsias sdias isdas sidas
Note: these 'words' (valid or invalid) are all the permutations of the word sadis. These words are obtained by scrambling the letters in sadis.