<http://webisa.webdatacommons.org/prov/109887866>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/10198337> .
<http://webisa.webdatacommons.org/10198337>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/10198337>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/10198337>	<http://www.w3.org/ns/prov#value>	"Polymers such as Mylar (polyethylene terephthalate), polyethylene, kaptan, and polystyrene are examples of materials which were found to make effective acoustic diaphragms 20 for the present invention." .