About: http://webisa.webdatacommons.org/453928706

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	An estimated 500,000 artisanal miners produced colored gemstones, diamond, gold, and other commodities.
http://www.w3.org/ns/prov#wasQuotedFrom	gemstone.org