PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Untreated depression is the most common cause of suicide in the US.In some people, periods of depression alternate with periods of extreme joy and dysfunctional behavior known as mania.
http://www.w3.org/ns/prov#wasQuotedFrom
  • simonandschuster.com