PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The climate convention was signed at the Rio Conference in 1992 and its key purpose is to prevent global warming which is taking place because of the accumulation of greenhouse gases" produced by burning of fossil fuels such as oil and coal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cseindia.org