PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Under cool temperatures and high pressures, deep in the ocean, carbon dioxide and other greenhouse gases react with water to form a liquid or a solid ice-like compound called clathrate hydrate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • overpopulation.org