spherical reflector is the principle of what type of telescope?
Entity
m.0clmf
Radio telescope
class entity
astronomy.telescope_type m.09tq_h_
astronomy.telescope_type astronomy.telescope_principle_type
Telescope type Spherical reflector
none none
astronomy.telescope_type.telescopic_principle
Telescopic principle
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_type . 
VALUES ?x1 { :m.09tq_h_ } 
?x0 :astronomy.telescope_type.telescopic_principle ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND astronomy.telescope_type (JOIN astronomy.telescope_type.telescopic_principle m.09tq_h_))