About: http://webisa.webdatacommons.org/367887608

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 product, after washing and drying in air, was a jet black, fiuify, magnetic powder weighing 30 g.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr