PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Drilling companies should be required to disclose the chemicals they use at all times, but especially before they start drilling, so communities can be on the lookout for any pollution in their water or environment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • hcn.org