PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ozone is produced by passing oxygen or a mixture of gases containing oxygen, such as air, through a corona discharge established between pairs of electrodes which are separated by an air gap and a dielectric shield, when the electrodes are connected to a high voltage source.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com