x-plane is part of the line of what aircraft model?
Entity Entity Entity Entity Entity Entity Entity Entity Entity
m.02r0rl m.040fv4 m.01dn2z m.01g9hy m.01z91k m.02r0c6 m.02r73w m.03m61m m.04jfl3
Northrop X-4 Bantam Bell X-14 Bell X-1 North American X-15 Bell X-2 Douglas X-3 Stiletto Bell X-5 Convair X-6 Ryan X-13 Vertijet
class entity
aviation.aircraft_model m.01z2fm
aviation.aircraft_model aviation.aircraft_line
Aircraft model X-plane
none none
aviation.aircraft_model.part_of_line
Part Of Line
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.01z2fm } 
?x0 :aviation.aircraft_model.part_of_line ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND aviation.aircraft_model (JOIN aviation.aircraft_model.part_of_line m.01z2fm))