what video game engine did id software develop?
Entity Entity Entity Entity Entity Entity
m.078j6_ m.06fbdb m.061xjs m.02rpzlg m.0fj1pf m.04j2b3
id Tech 4 id Tech 2 id Tech 3 id Tech 5 Wolfenstein 3D engine Quake engine
class entity
cvg.computer_game_engine m.03_05
cvg.computer_game_engine cvg.computer_game_engine_developer
Video Game Engine id Software
none none
cvg.computer_game_engine.developer
Developer
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :cvg.computer_game_engine . 
VALUES ?x1 { :m.03_05 } 
?x0 :cvg.computer_game_engine.developer ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND cvg.computer_game_engine (JOIN cvg.computer_game_engine.developer m.03_05))