<http://webisa.webdatacommons.org/378650038>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/378650038>	<http://www.w3.org/ns/prov#value>	"Dangerous Excavations. (a) (20-20) Access to unattended mine openings shall be restricted by gates or doors, or the openings shall be fenced and posted.(b) (20-21) Every dangerous surface excavation in which work has been discontinued, including any tunnel, mine shaft, pit, well, septic tank, cesspool, or other abandoned excavation, shall be securely covered over, fenced, or otherwise effectively" .
<http://webisa.webdatacommons.org/378650038>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ca.gov> .
<http://webisa.webdatacommons.org/prov/500024762>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/378650038> .