<http://webisa.webdatacommons.org/364570975>	<http://www.w3.org/ns/prov#value>	"To the extent that natural gas can be substituted for coal and oil ??? and especially if its use" .
<http://webisa.webdatacommons.org/364570975>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/246227317>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/364570975> .
<http://webisa.webdatacommons.org/364570975>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nwf.org> .
<http://webisa.webdatacommons.org/prov/281005292>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/364570975> .