About: http://webisa.webdatacommons.org/452093536

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	Similar materials other than foam also could be utilized for this purpose, including rubber, cork, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com