calos aclos claos lcaos alcos lacos caols acols coals ocals aocls oacls cloas lcoas colas oclas locas olcas alocs laocs aolcs oalcs loacs olacs calso aclso claso lcaso alcso lacso caslo acslo csalo scalo asclo saclo clsao lcsao cslao sclao lscao slcao alsco lasco aslco salco lsaco slaco caosl acosl coasl ocasl aocsl oacsl casol acsol csaol scaol ascol sacol cosal ocsal csoal scoal oscal socal aoscl oascl asocl saocl osacl soacl closa lcosa colsa oclsa locsa olcsa clsoa lcsoa csloa scloa lscoa slcoa cosla ocsla csola scola oscla socla losca olsca lsoca sloca oslca solca alosc laosc aolsc oalsc loasc olasc alsoc lasoc asloc saloc lsaoc slaoc aoslc oaslc asolc saolc osalc soalc losac olsac lsoac sloac oslac solac
Note: these 'words' (valid or invalid) are all the permutations of the word calos. These words are obtained by scrambling the letters in calos.