PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Transportation accounts for about 60% of carbon monoxide, 40% of nitrogen oxides, and about 40% of volatile organic compounds including hydrocarbons, which lead to atmospheric ozone when photoreacting with NOx.
http://www.w3.org/ns/prov#wasQuotedFrom
  • aps.org