PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Alkene - Wikipedia, the free encyclopediaIn organic chemistry, an alkene is an unsaturated hydrocarbon containing at a carbon ???carbon double bond.
http://www.w3.org/ns/prov#wasQuotedFrom
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