<http://webisa.webdatacommons.org/prov/215123148>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/263217604> .
<http://webisa.webdatacommons.org/prov/213044064>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/263217604> .
<http://webisa.webdatacommons.org/263217604>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/263217604>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/263217604>	<http://www.w3.org/ns/prov#value>	" Oil and natural gas compete with other forms of energy available to customers, primarily based on price." .