PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is possible that heart rate is a surrogate for some unmeasured variables that may be causally linked to noncardiovascular mortality.
http://www.w3.org/ns/prov#wasQuotedFrom
  • jamanetwork.com