PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This is due mainly to the burning of fossil fuels, particularly coal which releases the embedded mercury into the atmosphere and accounts for about 70% of the mercury found in the oceans.
http://www.w3.org/ns/prov#wasQuotedFrom
  • opsociety.org