About: http://webisa.webdatacommons.org/423319959

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 approach works best when there are obvious hot spots in the world for the level designer to place portals at, such as doors or windows connecting rooms in an indoor setting.
http://www.w3.org/ns/prov#wasQuotedFrom	gamasutra.com