About: http://webisa.webdatacommons.org/30642030

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	So if you find chemical elements such as iron, and in the rock/mineral it is 100% iron, then TADA. he is how we know.
http://www.w3.org/ns/prov#wasQuotedFrom	debate.org