PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At this point one starts to wonder if the most confusing thing about these studies is the definition of depression. (According to Medline, major depression is diagnosed when five or more symptoms of depression persist for more than two weeks -- symptoms including feeling sad, hopeless, worthless or pessimistic.) Perhaps it helps to not get overly hung up on such definitions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • latimes.com