<http://webisa.webdatacommons.org/345016903>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.ca> .
<http://webisa.webdatacommons.org/345016903>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/435591340>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/345016903> .
<http://webisa.webdatacommons.org/345016903>	<http://www.w3.org/ns/prov#value>	"It is preferred that washers 18 a-18 b be composed of a vibration damping material, examples including but not limited to elastomers, polymers, and lead." .