what reflective telescope is housed in mount wilson solar observatory?
Entity
m.0pd6ghh
Hooker Telescope
class entity entity
astronomy.telescope m.01f913 m.01nhc9
astronomy.telescope astronomy.astronomical_observatory astronomy.telescope_type
Telescope mount wilson solar observatory reflective telescope
none none none
astronomy.telescope.housed_in astronomy.telescope.type_of_telescope
Housed in Type of telescope
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 :astronomy.telescope . 
VALUES ?x1 { :m.01f913 } 
VALUES ?x2 { :m.01nhc9 } 
?x0 :astronomy.telescope.housed_in ?x1 . 
?x0 :astronomy.telescope.type_of_telescope ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND astronomy.telescope (AND (JOIN astronomy.telescope.housed_in m.01f913) (JOIN astronomy.telescope.type_of_telescope m.01nhc9)))