PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • He noted that, by 2020, the yield of food in certain areas of Africa is expected to decrease by 50% because of changes in temperature, not even considering El Nino and other weather patterns that are becoming increasingly unpredictable and difficult to cope with.
http://www.w3.org/ns/prov#wasQuotedFrom
  • iisd.org