<http://webisa.webdatacommons.org/prov/73351103>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/217538260> .
<http://webisa.webdatacommons.org/prov/33646820>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/217538260> .
<http://webisa.webdatacommons.org/217538260>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/217538260>	<http://www.w3.org/ns/prov#value>	"Examples of suitable materials which may be mentioned include silver, copper, gold and the oxides and sulfides of metals, for example of silicon, zirconium, titanium, cadmium or zinc." .
<http://webisa.webdatacommons.org/prov/271342510>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/217538260> .
<http://webisa.webdatacommons.org/217538260>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .