PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These blinded tests detected no PCBs, dioxins or heavy metals such as lead, cadmium, mercury or arsenic in any of the samples.
http://www.w3.org/ns/prov#wasQuotedFrom
  • biospace.com