<http://webisa.webdatacommons.org/prov/285672217>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/284269271> .
<http://webisa.webdatacommons.org/284269271>	<http://www.w3.org/ns/prov#value>	"tools and other techniques we employ to estimate the ultimate" .
<http://webisa.webdatacommons.org/284269271>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/284269271>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sec.gov> .