About: http://webisa.webdatacommons.org/163462646

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	In yet another alternative, the hollow portions 30 or inner space 70 of the inner core 26, 68 may be filled with another material, such as a closed-cell foam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au