gavin christopher is the sibling of which musician?
Entity
m.01p6l9q
Shawn Christopher
class class entity
music.group_member people.sibling_relationship m.04tdzq
music.group_member people.sibling_relationship tv.tv_actor
Musician Sibling Relationship Gavin Christopher
none none none
people.person.sibling_s people.person.sibling_s
Siblings Siblings
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.group_member . 
?x1 :type.object.type :people.sibling_relationship . 
VALUES ?x2 { :m.04tdzq } 
?x0 :people.person.sibling_s ?x1 . 
?x2 :people.person.sibling_s ?x1 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND music.group_member (JOIN people.person.sibling_s (JOIN (R people.person.sibling_s) m.04tdzq)))