About: http://webisa.webdatacommons.org/214928824

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 upper layer 38 is preferably a nonconductive, open-celled, plastic foam such as polyurethane or polyethylene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com