About: http://webisa.webdatacommons.org/412114664

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 materials thus penetrating the lining may include molten metal, but chiefly comprise values (in combined form) of sodium and aluminum, usually including cryolite or other fluorides.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com