PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The blood-brain barrier is a protective mechanism of the central nervous system that blocks substances from passing into the brain from the bloodstream.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ncstl.org