PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The objective was to produce N2 O4 in a normal level of purity without the formation of dilute nitric acid or other by-products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com