About: http://webisa.webdatacommons.org/317098561

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 a case where any material other than the insulator is employed as the burying material, its surface needs to be covered with an insulator.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com