About: http://webisa.webdatacommons.org/297230001

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	They can be used for compact, complex shapes that are difficult or impossible to achieve with other types of materials.
http://www.w3.org/ns/prov#wasQuotedFrom	globalspec.com