PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Chemicals included volatile organic compounds such as TCE and toluene, benzene, various pesticides, arsenic, mercury, cadmium, chromium and other heavy metals, as well as cesium and possibly other low-level radioactive wastes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • courant.com