PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The false vacuum is unstable, but in most versions of the theory it decays like a radioactive substance, such as radium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbs.org