PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Until the advent of fracing, the US was heavily dependent on the Middle East and other politically unstable or politically unfriendly regions of the world for oil supplies.
http://www.w3.org/ns/prov#wasQuotedFrom
  • msoe.edu