what star system body is the youngest?
Entity
m.02j71
Earth
class class literal
astronomy.star_system_body astronomy.celestial_object_age 0^^http://www.w3.org/2001/XMLSchema#int
astronomy.star_system_body astronomy.celestial_object_age type.float
Star system body Celestial object age 0
none none argmax
astronomy.celestial_object.celestial_age astronomy.celestial_object_age.age
Age Age
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.star_system_body . 
?x1 :type.object.type :astronomy.celestial_object_age . 
{
SELECT (MAX(?y2) AS ?x2)  WHERE { 
?y0 :type.object.type :astronomy.star_system_body . 
?y1 :type.object.type :astronomy.celestial_object_age . 
?y0 :astronomy.celestial_object.celestial_age ?y1 . 
?y1 :astronomy.celestial_object_age.age ?y2 . 
FILTER ( ?y0 != ?y1 && ?y0 != ?y2 && ?y1 != ?y2  )
}
}
?x0 :astronomy.celestial_object.celestial_age ?x1 . 
?x1 :astronomy.celestial_object_age.age ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(ARGMAX astronomy.star_system_body (JOIN astronomy.celestial_object.celestial_age astronomy.celestial_object_age.age))