About: http://webisa.webdatacommons.org/443039428

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	Valve, the Bellevue company behind the Steam video-game platform and hit games such as Portal and Half-Life, is developing a new educational game to help middle-school students learn physics.
http://www.w3.org/ns/prov#wasQuotedFrom	geekwire.com