what is the model name of the aircraft that took it's maiden flight on 11/09/1989?
Entity
m.02qzfdz
PZL-105 Flaming
class literal
aviation.aircraft_model 1989-11-09^^http://www.w3.org/2001/XMLSchema#date
aviation.aircraft_model type.datetime
Aircraft model 11/09/1989
none none
aviation.aircraft_model.maiden_flight
Maiden flight
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 { "1989-11-09-08:00"^^<http://www.w3.org/2001/XMLSchema#date> } 
?x0 :aviation.aircraft_model.maiden_flight ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND aviation.aircraft_model (JOIN aviation.aircraft_model.maiden_flight 1989-11-09^^http://www.w3.org/2001/XMLSchema#date))