About: http://webisa.webdatacommons.org/80454633

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	Examples of rigid materials include metals such as tin, aluminum, steel, and copper.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de