PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Experts have suspected Afghanistan's resource potential for decades, and U.S. Geological Survey fieldwork conducted between 2009 and 2011 confirmed the existence of significant copper, iron ore, gold, lithium, rare earths, and mineral fuel resources such as coal, oil, and gas, and possibly even uranium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • foreignaffairs.com