PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 2) the Program does not address n i t r o u s oxides, one of the two precursors
http://www.w3.org/ns/prov#wasQuotedFrom
  • azlibrary.gov