About: http://webisa.webdatacommons.org/51774162

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 mapping of Cassopeia A generates data on proto-silicates, silicon dioxide, iron oxide, pyroxene, carbon, aluminium oxide and other compounds.
http://www.w3.org/ns/prov#wasQuotedFrom	centauri-dreams.org