<http://webisa.webdatacommons.org/57667382>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/57667382>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wikidoc.org> .
<http://webisa.webdatacommons.org/57667382>	<http://www.w3.org/ns/prov#value>	"Lead can be toughened by adding a small amount of antimony or other metals to it." .
<http://webisa.webdatacommons.org/prov/115636787>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/57667382> .