PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Higher tungsten levels are also a relative measure, said Tyrrell, because so little is known about our exposure, unlike other metals such as lead or mercury.
http://www.w3.org/ns/prov#wasQuotedFrom
  • theconversation.com