PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although GHG such as carbon dioxide, or CO2, methane, and nitrous oxide occur naturally, several independent sources of evidence make it increasingly evident that they are increasing because of human activities.
http://www.w3.org/ns/prov#wasQuotedFrom
  • journalrecord.com