PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One of the benefits of this approach is that harmful vapours can be captured and stored underground, while toxic waste, such as mercury, doesn???t reach the surface.
http://www.w3.org/ns/prov#wasQuotedFrom
  • moneyweek.com