PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The palladium catalyst used in the past was typically a palladium salt, such as palladium sulfate or palladium chloride.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au