PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Several gases, including carbon dioxide, methane and nitrous oxide, warm the planet as their concentrations in the atmosphere increase.
http://www.w3.org/ns/prov#wasQuotedFrom
  • taipeitimes.com