PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But depression, which is characterized by such symptoms as lengthy periods of sadness, anxiety and feelings of hopelessness, can be treated.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thebody.com