PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Amgen's most significant operating expense is research and development, which gobbled up 28 percent of last year's product sales.
http://www.w3.org/ns/prov#wasQuotedFrom
  • fool.com