PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • By making use of metadata and controlled vocabularies, the ePCRN has reduced complications associated with cross-institutional variation in definitions and representations for clinical, demographic, or other concepts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ahrq.gov