PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In conducting research studies on acidic deposition, it became increasingly apparent that it was only a part of a much larger environmental concern, atmospheric deposition, which includes mercury, nitrate nitrogen and organochlorine compounds such as pesticides, polychlorinated biphenyls (PCBs), dioxins and furans.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • scienceblogs.com