the meson has what subatomic particles?
Entity Entity Entity Entity Entity Entity Entity
m.07g9lh m.093bp94 m.093bp97 m.093bp9b m.03y05pw m.03_9sy m.0970y
Upsilon meson π⁺ π⁰ π⁻ B meson J/psi meson Pion
class entity
physics.particle m.04_rh
physics.particle physics.particle_family
Subatomic particle Meson
none none
physics.particle.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 :physics.particle . 
VALUES ?x1 { :m.04_rh } 
?x0 :physics.particle.family ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND physics.particle (JOIN physics.particle.family m.04_rh))