PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The reality is that many heart attacks are much quieter, causing only mild chest pain or discomfort or other symptoms such as shortness of breath or diaphoresis.
http://www.w3.org/ns/prov#wasQuotedFrom
  • clinicaltrials.gov