PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Second, people suffering from long-term depression may have one of two different types of depression ??? unipolar depression (which is a condition of recurrent depressive episodes but no other type of mood state) or bipolar depression (the depressive phase of bipolar disorder, which is interspersed with episodes of mania or hypomania).
http://www.w3.org/ns/prov#wasQuotedFrom
  • everydayhealth.com