About: http://webisa.webdatacommons.org/21188384

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The area was a coal mining area, and coal was one of the goods transported.Before the construction of the dam, people on the boats used long poles to move and control their boats, pushing hard against the river bottom and the cliffs.
http://www.w3.org/ns/prov#wasQuotedFrom	chinahighlights.com