PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When so-called greenhouse gases, most notably carbon dioxide, are pumped into the atmosphere at extremely high rates, they build up in Earth's atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom
  • howstuffworks.com