PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Air pollutants can come from fine particles, like vehicle exhaust and soot, gases such as ozone and carbon monoxide, smoke from tobacco and stoves, as well as fumes released from the burning of coal, oil, kerosene, everyday household cleaning products and paints.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov