About: http://webisa.webdatacommons.org/94979140

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	The frame 11 may be composed of any material which is strong and light, such as steel or aluminum tubing, and the reflecting covering 12 may be of conducting material such as metallic mesh or sheet metal, as is well known.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com