About: http://webisa.webdatacommons.org/175889947

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	A black hole is a region of space in which space-time curvature has become so extreme that an event horizon is present.
http://www.w3.org/ns/prov#wasQuotedFrom	astronomycafe.net