PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The tablets, known as Cox-2 inhibitors, were developed by drug companies, including Merck and Pfizer, because they cause fewer stomach problems than other painkillers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bbc.co.uk