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http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • On Wednesday, Dec. 5, Pfizer (PFE) released positive test data for PD-0332991, a drug aimed mainly at breast cancer.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wn.com