PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Organic chemicals are chemical substances containing carbon and hydrogen and some other elements such oxygen, nitrogen, halogens, among others.
http://www.w3.org/ns/prov#wasQuotedFrom
  • marketpublishers.com