PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Valve now has their own engine (with the embedded Havoc physics engine licensed from another dev house) and are where Id was a decade ago, licensing use of the Source engine to developers who have used it for everything from other FPSes to arcade games to racing simulations.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackexchange.com