PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The report delivers some astonishing facts???secondhand smoke actually contains higher levels of cancer causing substances than smoke directly inhaled by the smoker, including benzene, formaldehyde, catechol and N-nitrosamines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov