PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A catalyst is heated at 450??? C. in a vacuum for 30 minutes to remove water vapor and other volatiles.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es