PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is well known that certain psychiatric symptoms, particularly related to depression and anxiety, are associated with dysfunction of the 24-hour biological clock, also known as the circadian system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • upmc.com