PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, it has been known since the 1950's that lower primary alcohols, particularly methanol, can be oxidized directly.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com