About: http://webisa.webdatacommons.org/111746608

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	Asteroids vary in composition, from silicates, that is, sand, quartz and other rock-type materials, to metals such as nickel and iron.
http://www.w3.org/ns/prov#wasQuotedFrom	kenpress.com