PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These toxic chemicals such as aluminum, barium and other toxic metals and chemicals are seeping into our soil and contaminating our water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wn.com