PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The gas is about 50 percent methane, and the rest is water vapor, carbon dioxide and other chemicals.
http://www.w3.org/ns/prov#wasQuotedFrom
  • onlineathens.com