PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As those wells are being prepared for production, they emit volatile organic compounds (VOCs), which contribute to smog formation, and air toxics, including benzene and hexane, which can cause cancer and other serious health effects.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov