About: http://webisa.webdatacommons.org/60239941

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	This can be done in areas that have few resource substances in the environment around them that are magnetically attractive such as iron or other ferrous compounds or ores.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com