About: http://webisa.webdatacommons.org/20686356

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	Cassiterite and coltan are used to make mobile phones, computers and other electronics, among other things.
http://www.w3.org/ns/prov#wasQuotedFrom	congoresources.org