About: http://webisa.webdatacommons.org/419178839

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	At this time, cerium, zirconium and lanthanum are present in the forms of their oxides, i.e. cerium oxide (CeO2), zirconium oxide (ZrO2) and lanthanum oxide (La2 O3), respectively.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com