About: http://webisa.webdatacommons.org/115713995

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	At the bottom, is a system more often used near the boundary of a coalfield where the coal is removed from the furthest part, working back towards the mineshaft.
http://www.w3.org/ns/prov#wasQuotedFrom	hoodfamily.info