PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Iodine is a trace element found in seawater, rocks and in some types of soil.
http://www.w3.org/ns/prov#wasQuotedFrom
  • oilsandplants.com