<http://webisa.webdatacommons.org/12280539>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/90623871>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/12280539> .
<http://webisa.webdatacommons.org/12280539>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/12280539>	<http://www.w3.org/ns/prov#value>	"In the above embodiment, copper is used as an object metal for etching treatment, but this invention is not limited to copper, so that the invention can be applied to other metals such as gold, silver, or solder." .