PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It typically takes several weeks before depressed patients begin to show clinical improvement, even though drugs such as Prozac or Effexor increase serotonin activity within hours.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dana.org