About: http://webisa.webdatacommons.org/284506814

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	Applied in antiquity to white sapphire, magnet, steel, emery stone, and especially diamond.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com