<http://webisa.webdatacommons.org/208251323>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wef.org> .
<http://webisa.webdatacommons.org/208251323>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/269857545>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/208251323> .
<http://webisa.webdatacommons.org/208251323>	<http://www.w3.org/ns/prov#value>	"hydrocarbons: substances containing only hydrogen and carbon, such as methane, alkane, or ethylene." .