PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Caffeine is a drug, but it has nowhere near the kinds of risks associated with conventional drugs of abuse, Griffiths said.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com