PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • All combustion processes, such as vehicle engines, power stations and industries emit nitric oxide (NO) and nitrogen dioxide (NO2), collectively called oxides of nitrogen (i.e. NOx).
http://www.w3.org/ns/prov#wasQuotedFrom
  • swale.gov.uk