About: http://webisa.webdatacommons.org/201508491

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	sources such as pulsars and twin star systems as well as orbiting black holes.
http://www.w3.org/ns/prov#wasQuotedFrom	berkeley.edu