PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It contains arsenic, chromium, iron, lead and other toxic metals, all naturally derived from the Dan River in North Carolina.
http://www.w3.org/ns/prov#wasQuotedFrom
  • myfox8.com