find the parent genre of deathcore.
Entity
m.0s8v8t6
Deathstep
class entity
music.genre m.066d03
music.genre music.genre
Musical genre Deathcore
none none
music.genre.parent_genre
Parent genres
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.genre . 
VALUES ?x1 { :m.066d03 } 
?x0 :music.genre.parent_genre ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND music.genre (JOIN music.genre.parent_genre m.066d03))