About: http://webisa.webdatacommons.org/401046384

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 simple equation E = mc2 is not generally applicable to all these types of mass and energy, except in the special case that the total additive momentum is zero for the system under consideration.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org