what is the genre of the recording of wagner: der ring des nibelungen?
Entity
m.07q9r
Der Ring des Nibelungen
class entity
opera.opera m.0_gmdr7
opera.opera opera.opera_recording
Opera Wagner: Der Ring Des Nibelungen
none none
opera.opera.recordings
Recordings
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 :opera.opera . 
VALUES ?x1 { :m.0_gmdr7 } 
?x0 :opera.opera.recordings ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND opera.opera (JOIN opera.opera.recordings m.0_gmdr7))