About: http://webisa.webdatacommons.org/408739947

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	Furthermore, fine particles of magnetic materials, such as magnetite ferrite, titanium black, and others, may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com