About: http://webisa.webdatacommons.org/236449006

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	Rio Negro is the largest blackwater river in the world and comes from the watershed located between Rio Orinoco and the Amazon basin.
http://www.w3.org/ns/prov#wasQuotedFrom	aquaticcommunity.com