About: http://webisa.webdatacommons.org/216063273

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 preferred foam material is a highly expanded (>90%) polymer such as a polyolefin, created by introducing cellular voids within the base polymer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es