PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A number of new retinoids are being tested for their effectiveness in treating and, in some cases, preventing various forms of cancer, including breast, ovarian and lung cancer.
http://www.w3.org/ns/prov#wasQuotedFrom
  • marchofdimes.org