About: http://webisa.webdatacommons.org/239378959

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 FIG. 3 a, lamp 300 is backed by reflective layer 302, desirably aluminum or other reflective material, such as a silvered surface or a highly polished reflective copper surface.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com