<http://webisa.webdatacommons.org/159670590>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cornell.edu> .
<http://webisa.webdatacommons.org/159670590>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/159670590>	<http://www.w3.org/ns/prov#value>	"Where a doorway opens upon a railroad track or upon a tramway or dock over which vehicles travel, a barrier or other warning device shall be placed to prevent workmen from stepping into moving traffic." .
<http://webisa.webdatacommons.org/prov/270661282>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/159670590> .