al maktoum international airport is included in which airline's hub?
Entity Entity
m.04f1spy m.05nvfp
flydubai Emirates SkyCargo
class entity
aviation.airline m.091xqz
aviation.airline aviation.airport
Airline Al Maktoum International Airport
none none
aviation.airline.hubs
Hubs
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.airline . 
VALUES ?x1 { :m.091xqz } 
?x0 :aviation.airline.hubs ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND aviation.airline (JOIN aviation.airline.hubs m.091xqz))