<http://webisa.webdatacommons.org/3925190>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/16979980>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/3925190> .
<http://webisa.webdatacommons.org/3925190>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<rexresearch.com> .
<http://webisa.webdatacommons.org/3925190>	<http://www.w3.org/ns/prov#value>	"materials which may be used are metals such as beryllium," .