<http://webisa.webdatacommons.org/prov/3408890>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/244738704> .
<http://webisa.webdatacommons.org/prov/232323169>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/244738704> .
<http://webisa.webdatacommons.org/244738704>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<imf.org> .
<http://webisa.webdatacommons.org/244738704>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/244738704>	<http://www.w3.org/ns/prov#value>	"Administering government revenues from the extraction of nonrenewable natural resources such as oil, gas, coal and other minerals presents special difficulties." .