About: http://webisa.webdatacommons.org/157167651

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	All floor and wall openings, including cracks, within 35 feet of the operations will be tightly covered.
http://www.w3.org/ns/prov#wasQuotedFrom	mines.edu