About: http://webisa.webdatacommons.org/146551989

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	Portal is a puzzle game which uses a portal gun to solve a number of interesting spatial problems and it ships for free in Half-Life 2: Episode 2.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com