About: http://webisa.webdatacommons.org/268948802

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In the preferred embodiment, the layer 2 is a thin film of silver, however, thin layers of copper or gold are also suitable.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com