About: http://webisa.webdatacommons.org/252722009

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	A refractory mask of a suitable material such as silicon nitride or silicon dioxide can, however, effectively seal the surface and provide the needed protection.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com