About: http://webisa.webdatacommons.org/289093952

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	All the while though, it leaches materials such as iron, boron, manganese, magnesium, sodium, calcium and lithium (to name but a few elements) into the ground and into the Vaal River system.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com