PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Caffeine is a carcinogen, but coffee contains numerous other ones, created by the high heat of roasting, such as creosote, pymdine, tars and polycyclic aromatic hydrocarbons.
http://www.w3.org/ns/prov#wasQuotedFrom
  • healthy.net