About: http://webisa.webdatacommons.org/423758667

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	(where $R$ is the radius of the object we are trying to escape) then this object is a black hole.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com