About: http://webisa.webdatacommons.org/214933967

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 organic material may be metal or metal compounds, particularly magnetizable materials such as iron, nickel or cobalt or oxides thereof such as magnetite, ceramic or glass spheres and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com