PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Secondhand smoke contains over 4000 chemicals including arsenic, formaldehyde, carbon monoxide, and benzene.
http://www.w3.org/ns/prov#wasQuotedFrom
  • no-smoke.org