About: http://webisa.webdatacommons.org/215047880

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 constitution may additionally have Al2O3, Fe2O3, and/or NiO as modifiers that are used to adjust color hue and other properties that may be needed in specific applications. (Ref IPConsortium);
http://www.w3.org/ns/prov#wasQuotedFrom	artiscreation.com