PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The material is a compound made from potassium, niobium, oxygen, and chromium ions and could potentially be as important to computers of the future as silicon is to today's computers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • acm.org