PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These inexpensive dental fillings contain about 50% mercury, along with other metals such as silver.[6] Due to widespread use and popular concern the risk of toxicity from dental amalgam has been exhaustively scientifically investigated.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org