caids acids ciads icads aicds iacds cadis acdis cdais dcais adcis dacis cidas icdas cdias dcias idcas dicas aidcs iadcs adics daics idacs diacs caisd acisd ciasd icasd aicsd iacsd casid acsid csaid scaid ascid sacid cisad icsad csiad sciad iscad sicad aiscd iascd asicd saicd isacd siacd cadsi acdsi cdasi dcasi adcsi dacsi casdi acsdi csadi scadi ascdi sacdi cdsai dcsai csdai scdai dscai sdcai adsci dasci asdci sadci dsaci sdaci cidsa icdsa cdisa dcisa idcsa dicsa cisda icsda csida scida iscda sicda cdsia dcsia csdia scdia dscia sdcia idsca disca isdca sidca dsica sdica aidsc iadsc adisc daisc idasc diasc aisdc iasdc asidc saidc isadc siadc adsic dasic asdic sadic dsaic sdaic idsac disac isdac sidac dsiac sdiac
Note: these 'words' (valid or invalid) are all the permutations of the word caids. These words are obtained by scrambling the letters in caids.