PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • HARRISBURG, Pa., April 6 /PRNewswire-USNewswire/ ??? High levels of total dissolved solids pollution from natural gas drilling and other sources pose a real threat to Pennsylvania???s streams and rivers, including aquatic life, warned Department of Environmental Protection Secretary John Hanger today.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cleantechnica.com