which automobile model directly preceded the second generation mercury topaz?
Entity
m.01ttst
Ford Contour
class class entity
automotive.model automotive.model m.02n9nnc
automotive.model automotive.model automotive.generation
Automobile Model Automobile Model Second Generation Mercury Topaz
none none none
automotive.model.predecessor automotive.generation.model
Predecessor Model
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 :automotive.model . 
?x1 :type.object.type :automotive.model . 
VALUES ?x2 { :m.02n9nnc } 
?x0 :automotive.model.predecessor ?x1 . 
?x2 :automotive.generation.model ?x1 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND automotive.model (JOIN automotive.model.predecessor (JOIN (R automotive.generation.model) m.02n9nnc)))