About: http://webisa.webdatacommons.org/37886857

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	The nine standards address ventilation, methane, roof control, combustible materials, rock dust, equipment guarding and other safeguards.
http://www.w3.org/ns/prov#wasQuotedFrom	msha.gov