About: http://webisa.webdatacommons.org/367933225

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 conductive elements may be of aluminum foil or other suitably flexible and conductive material, and may be reinforced by backing sheets, such as of plastic film, as at 26a and 28a.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com