PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • EPA today updated and broadened two Clean Air Act standards to control dangerous air pollution released during natural gas and oil drilling, pumping, and distribution through pipelines to refineries and other processing facilities.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nrdc.org