PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • it is possible that stress, family changes such as growing children or aging parents, a history of depression, or feeling tired could be causing these mood changes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nih.gov