About: http://webisa.webdatacommons.org/43011905

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As has been pointed out above, heavy hydrocarbon feedstocks contain compounds which have, in addition to hydrogen and carbon atoms, heteroatoms such as oxygen, nitrogen and sulfur as well as metals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com