PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cigarette smoke contains trace amounts of about 4,000 chemicals, including 200 known poisons like formaldehyde and carbon monoxide, and 43 carcinogens.
http://www.w3.org/ns/prov#wasQuotedFrom
  • palomarhealth.org