About: http://webisa.webdatacommons.org/204237355

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	Where a foamed body is used as a retentive sheet 3, the constituent materials include polyurethane resins, olefin resins such as polyethylene and polypropylene, polystyrene resins, polymethyl methacrylate, polyvinyl chloride, polyamide,
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com