PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The reality is that coal is very much a staple in the global energy market, providing 30 percent of the world???s energy use and 41 percent of the world???s electricity generation.[23] Furthermore, 70 percent of the world???s steel production relies on coal.[24] While coal is by no means the only source of energy developed across the globe, coal is an important resource to driving economic growth
http://www.w3.org/ns/prov#wasQuotedFrom
  • heritage.org