PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • And one way to reconcile the curious ontology of "synthesized natural products" is to see that what matters in determining whether a product is natural or not is its state as a continuant: its morphology, which is the product of nature, not man's invention.
http://www.w3.org/ns/prov#wasQuotedFrom
  • patentdocs.org