the family double bass contains what musical instrument?
Entity Entity
m.05lpwv m.0281f55
Electric upright bass Triple contrabass viol
class entity
music.instrument m.02fsn
music.instrument music.instrument
Musical instrument Double bass
none none
music.instrument.family
Family
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 :music.instrument . 
VALUES ?x1 { :m.02fsn } 
?x0 :music.instrument.family ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND music.instrument (JOIN music.instrument.family m.02fsn))