PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some oil companies, such as Shell, have failed to make their investments in shale gas pay off, but BHP reckons that in a few years??? time its investments could be churning out $3bn of cash flow a year.
http://www.w3.org/ns/prov#wasQuotedFrom
  • moneyweek.com