PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although some heavy metals, such as nickel, copper, iron, manganese, and zinc, regulate various biological processes in
http://www.w3.org/ns/prov#wasQuotedFrom
  • oxfordbibliographies.com