PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Persistent negative thoughts, however, are a sign of clinical depression or anxiety, which is as common during pregnancy as it is after birth.
http://www.w3.org/ns/prov#wasQuotedFrom
  • babble.com