<http://webisa.webdatacommons.org/328067487>	<http://www.w3.org/ns/prov#value>	" materials such as mercury." .
<http://webisa.webdatacommons.org/prov/45597570>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/328067487> .
<http://webisa.webdatacommons.org/328067487>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/328067487>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .