About: http://webisa.webdatacommons.org/217085932

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: First Slice is classed as an extended demo, so we may be lying when we said a free game... and since Portal is a third of a game in itself you are essentially getting some double digit fraction for free.
http://www.w3.org/ns/prov#wasQuotedFrom	bit-tech.net