About: http://webisa.webdatacommons.org/407029904

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 elements just described are made of any electrically insulating material, such as rubber or polyethylene or other plastic materials, non-reactive with respect to the separating medium and materials being separated.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com