PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Charities who are good at fundraising intuitively appreciate impure altruism and view the donation as a sort of exchange.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freakonomics.com