About: http://webisa.webdatacommons.org/215719442

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 arrangement can be extremely useful in situations such as a mine pit or mine shaft, in which mining vehicles may be out of view of one or more of the GPS satellites, because of topographic features such as high mine pit walls.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk