PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Heterocyclic organic compounds are composed of at least one atom of carbon bound to at least one other element, such as oxygen or sulfur.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com