PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For instance, he said geochemical measurements have revealed a surface poor in iron, but rich in moderately volatile elements such as sulfur and sodium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spacedaily.com