unsent is a release for which musical recording?
Entity Entity Entity
m.0m4jth m.0dz5w09 m.0dp1122
Unsent Are You Still Mad (BBC/Radio One live) London (Bridge School Benefit live)
class entity
music.recording m.04cjhn4
music.recording music.release
Musical Recording Unsent
none none
music.recording.releases
Releases
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.recording . 
VALUES ?x1 { :m.04cjhn4 } 
?x0 :music.recording.releases ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND music.recording (JOIN music.recording.releases m.04cjhn4))