PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Symptoms of clinical depression vary from one person to another, but doctors say to keep an eye out for five or more of these symptoms, especially if they persist for more than two weeks:
http://www.w3.org/ns/prov#wasQuotedFrom
  • aarp.org