About: http://webisa.webdatacommons.org/31708656

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	Neither are there any particular restrictions on the metal used in forming the metal reflective layer, but examples include aluminum, gold, silver, copper, nickel, chromium, magnesium, zinc, and other such metals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es