<http://webisa.webdatacommons.org/prov/47843939>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134344457> .
<http://webisa.webdatacommons.org/134344457>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/134344457>	<http://www.w3.org/ns/prov#value>	"are typically formed of ceramic materials, such as alumina" .
<http://webisa.webdatacommons.org/134344457>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .