About: http://webisa.webdatacommons.org/210543556

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	Located behind the men is a ladder which was used to go from ledge to ledge to drill as they continued deeper into the vein of slate.
http://www.w3.org/ns/prov#wasQuotedFrom	mainememory.net