PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To do this, we must drastically reduce our greenhouse gas emissions (GHG) ??? gases such as carbon dioxide, methane and nitrous oxide that trap heat in the atmosphere, raising global temperature and thereby spurring climate change.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sierraclub.ca