About: http://webisa.webdatacommons.org/121880242

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	role in extracting gold and other metals such as silver, copper and zinc from ores
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net