About: http://webisa.webdatacommons.org/424175238

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	(3) Weighting agent--many types of weighting agents are available such as clay, alpha-alumina, zircon, mullite, alumina mono- or trihydrate, halloysite, sand, titania or other relatively inert materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com