PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Explaining the natural greenhouse effect and human enhanced greenhouse effect due to gases such as nitrous oxide, carbon dioxide, methane, sulfur hexafluoride etc she pointed out that global warming is a more serious threat than nuclear war.
http://www.w3.org/ns/prov#wasQuotedFrom
  • prlog.org