About: http://webisa.webdatacommons.org/397130557

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 layer consists of balsa wood for this preferred embodiment, though a plastic foam such as polystyrene would fulfill the same function.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es