About: http://webisa.webdatacommons.org/343113004

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	And gravitons are inevitably massless because they do not pick any preferred reference frame - or, alternatively, because gravity is a long-range force.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com