PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • M can also be another metal, for example an alkaline earth metal, such as calcium or magnesium, or copper or silver.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com