About: http://webisa.webdatacommons.org/49024903

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	Usually, electrons are bound in a solid by binding energy which is called work function, and they cannot be forced outside the solid unless energy larger than this binding energy is added to them.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr