PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At the global level, atmospheric concentrations of carbon dioxide and other heat???trapping greenhouse gases have increased sharply since the Industrial Revolution.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wunderground.com