<http://webisa.webdatacommons.org/63239141>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<slideshare.net> .
<http://webisa.webdatacommons.org/prov/165414846>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/63239141> .
<http://webisa.webdatacommons.org/63239141>	<http://www.w3.org/ns/prov#value>	"Materials used for nozzles, disks, and other parts contained withinthe external structure of the pressure relief valve should be one of thefollowing:??? Listed in Sec." .
<http://webisa.webdatacommons.org/63239141>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .