eilds ields elids leids ileds lieds eidls iedls edils deils idels diels eldis ledis edlis delis ldeis dleis ildes lides idles diles ldies dlies eilsd ielsd elisd leisd ilesd liesd eisld iesld esild seild iseld sield elsid lesid eslid selid lseid sleid ilsed lised isled siled lsied slied eidsl iedsl edisl deisl idesl diesl eisdl iesdl esidl seidl isedl siedl edsil desil esdil sedil dseil sdeil idsel disel isdel sidel dsiel sdiel eldsi ledsi edlsi delsi ldesi dlesi elsdi lesdi esldi seldi lsedi sledi edsli desli esdli sedli dseli sdeli ldsei dlsei lsdei sldei dslei sdlei ildse lidse idlse dilse ldise dlise ilsde lisde islde silde lside slide idsle disle isdle sidle dsile sdile ldsie dlsie lsdie sldie dslie sdlie
Note: these 'words' (valid or invalid) are all the permutations of the word eilds. These words are obtained by scrambling the letters in eilds.