About: http://webisa.webdatacommons.org/208004396

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	Surely not gravity, unless you want to argue that Earth is the most massive object in the universe.
http://www.w3.org/ns/prov#wasQuotedFrom	discovermagazine.com