PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These piles are contaminated with high levels of metals including cadmium, lead, tin, chromium, copper, zinc, and nickel, as well as PCBs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov