About: http://webisa.webdatacommons.org/16118208

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	This event can be used e.g. if you want to pause your game when the window is inactive.
http://www.w3.org/ns/prov#wasQuotedFrom	sfml-dev.org