PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This study discusses Pfizer, Merck, GSK, Cubist, Abbott, Bayer and other pharmaceutical companies.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bio-medicine.org