PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The activation step comprises the reaction of surface carbon with the activating gases, such as steam, carbon dioxide, or their mixture, according to the following equations:
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com