PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Elements such as niobium, neodymium, dysprosium and cerium underwent a spectacular price rally, with niobium prices increas ing by over 1,000%.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bmiresearch.com