About: http://webisa.webdatacommons.org/318618306

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	A suitable material for this purpose is a non-rigid foam made from a synthetic resin or plastic, such as polyester or polyurethane resins, but the invention is not limited to a particular material or materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com