PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The study sites polycyclic aromatic hydrocarbons (PAHs), or ???chemicals released into the air from the burning of coal, diesel, oil, and gas, or other organic substances such as tobacco??? as the major perpetrators of inner- city air pollution, with a particular focus on motor vehicle use.
http://www.w3.org/ns/prov#wasQuotedFrom
  • enn.com