PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • he is a simple historical fact, based on how much the U.S. economy depended on slave labor for its development, and especially for its ability to industrialize, rather than become trapped in the same economics of resource extraction and agricultural production that still keeps living standards relatively low in Africa and throughout the developing world.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tracingcenter.org