About: http://webisa.webdatacommons.org/397206903

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 cavity 15 is defined by the interior opposing surfaces of the sheet 13 and either the sheet 14 or the partition 10, depending, respectively, on whether both surfaces or a single surface of the wall is being insulated.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com