PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The silicates react with CO2 and water from the atmosphere, generating silica, calcium and magnesium carbonates and other minerals.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ft.com