PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Volcanoes and the burning of fossil fuels, especially coal and wastes, account for a large proportion of mercury released.
http://www.w3.org/ns/prov#wasQuotedFrom
  • toxipedia.org