About: http://webisa.webdatacommons.org/441913071

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	Silica, alumina and other materials known in the art may be used as the support, but alumina is the preferred support.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com