allison model 250 is the engine type of what aircraft model?
Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity
m.02rq216 m.04s94w m.056l3p m.02qwp7w m.03r9ss m.07rspv m.0264kj1 m.027c0y_ m.09_9gc m.02vr99 m.03mb71 m.02p9_7x m.0j53xrp m.0563fd m.03d4l_c m.04jl1g3 m.0bh99m1 m.0j548z2 m.0j59cn1 m.026k44m m.0271ctx m.02pfs27 m.05fc8bk m.02rp_52
Bell 400 Bell 206 Bell 407 McDonnell Douglas MD 500 Defender Aermacchi M-290 RediGO PZL Kania GAF Nomad Fairchild Hiller FH-1100 Northrop Grumman MQ-8 Fire Scout Hughes OH-6 Cayuse Sikorsky S-76 Bell 430 Bell 230 PZL SW-4 Cicaré CH-14 Boeing AH-6 VFW-Fokker H3 S-76A Bell 407GX Extra EA-500 MD Helicopters MD 600 Sikorsky S-333 Sikorsky S-434 Sikorsky S-75
class entity
aviation.aircraft_model m.0gtbzf
aviation.aircraft_model aviation.aircraft_engine_type
Aircraft model Allison Model 250
none none
aviation.aircraft_model.engine_type
Engine Type
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 :aviation.aircraft_model . 
VALUES ?x1 { :m.0gtbzf } 
?x0 :aviation.aircraft_model.engine_type ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND aviation.aircraft_model (JOIN aviation.aircraft_model.engine_type m.0gtbzf))