the musical game frets on fire uses what input method?
Entity Entity
m.01m2v m.02_xfg7
Computer keyboard Guitar Hero Guitar
class class entity
cvg.input_method cvg.musical_game m.0fx8sv3
cvg.input_method cvg.musical_game cvg.video_game_soundtrack
Input Method Musical Game Frets on Fire
none none none
cvg.input_method.games_using_this cvg.video_game_soundtrack.video_game
Games Using This Video game
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.input_method . 
?x1 :type.object.type :cvg.musical_game . 
VALUES ?x2 { :m.0fx8sv3 } 
?x0 :cvg.input_method.games_using_this ?x1 . 
?x2 :cvg.video_game_soundtrack.video_game ?x1 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND cvg.input_method (JOIN cvg.input_method.games_using_this (JOIN (R cvg.video_game_soundtrack.video_game) m.0fx8sv3)))