About: http://webisa.webdatacommons.org/17157213

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	With double-walled embodiments, a space is defined between the two walls which may be filled with a material such as an antifreeze, a coolant or an insulating material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com