PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While the use of such acid catalysts has been found to be advantageous in many cases, their use is often objectionable because many acid catalysts are highly corrosive to various substrates, such as metals.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com