PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Depression sufferers typically have reduced levels of brain chemicals called neurotransmitters, especially serotonin, which is important for mood regulation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • healthguru.com