About: http://webisa.webdatacommons.org/52617725

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 spacing layer 17 and the upper cover 18 can be made of transparent opaque insulating materials such as plastics or polymers including PVC, Mylar, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au