PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One significant change was the advent of biomineralization, when organisms first began using minerals such as calcium carbonate to build structures, including shells and skeletons.
http://www.w3.org/ns/prov#wasQuotedFrom
  • physicscentral.com