PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Following the Lewis and Clark expedition, further exploration, growing commerce, and expanding settlement of the American West, including California and the Oregon Territory, which was not part of the original Louisiana Purchase, would bring the nation to the Pacific and lay the foundation for the emergence of the United States in the twentieth century as the world's preeminent power.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newworldencyclopedia.org