About: http://webisa.webdatacommons.org/17747927

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	Today only a third of the world???s 177 large rivers (1,000 km and longer) remain free-flowing, unimpeded by dams or other barriers.
http://www.w3.org/ns/prov#wasQuotedFrom	panda.org