PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, the atmosphere is a dynamic and complex system and a number of competing factors may be contributing to the record arctic ozone depletion seen this year.
http://www.w3.org/ns/prov#wasQuotedFrom
  • earthtimes.org