About: http://webisa.webdatacommons.org/338778406

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 astronomers estimate that the black hole probably is about ten times more massive than the Sun, and that its companion is a middle-sized, rather than a giant, star.
http://www.w3.org/ns/prov#wasQuotedFrom	sci-news.com