About: http://webisa.webdatacommons.org/323483317

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	Highly Porous Models - Models that are highly porous (made from such materials as dry plaster, concrete or limestone) contain a lot of air.
http://www.w3.org/ns/prov#wasQuotedFrom	smooth-on.com