<http://webisa.webdatacommons.org/308655771>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/227378266>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/308655771> .
<http://webisa.webdatacommons.org/308655771>	<http://www.w3.org/ns/prov#value>	"In the long run though, metals are the most intractable problem." .
<http://webisa.webdatacommons.org/308655771>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .