PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • MedlinePlus: Clinical Trials - Basic information about clinical trials and extensive links to further explanations, websites, and other resources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • herricklibrary.org