PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Dioxins are mainly by products of industrial processes but can also result from natural processes, such as volcanic eruptions and forest fires.
http://www.w3.org/ns/prov#wasQuotedFrom
  • who.int