whose project was eiffel tower?
Entity
m.04_nkh1
Eiffel & Cie
class entity
architecture.engineering_firm m.02j81
architecture.engineering_firm architecture.structure
Engineering firm Eiffel Tower
none none
architecture.engineering_firm.projects
Projects
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 :architecture.engineering_firm . 
VALUES ?x1 { :m.02j81 } 
?x0 :architecture.engineering_firm.projects ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND architecture.engineering_firm (JOIN architecture.engineering_firm.projects m.02j81))