<http://webisa.webdatacommons.org/272290180>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/57005063>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/272290180> .
<http://webisa.webdatacommons.org/272290180>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/272290180>	<http://www.w3.org/ns/prov#value>	"The diaphragms\" and 38a may be formed of rubber, synthetic rubber, I neoprene or other similar material to produce the desired flexibility of operation." .