About: http://webisa.webdatacommons.org/400895234

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	Among these, the core material may include inorganic materials, such as glass fiber, perlite, etc, or organic materials, such as an open-celled rigid polyurethane foam.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com