what opera character is married to the character of clytemnestra?
Entity Entity
m.0qrc m.0_vn
Agamemnon Aegisthus
class class entity
opera.opera_character fictional_universe.marriage_of_fictional_characters m.0fj_6g
opera.opera_character fictional_universe.marriage_of_fictional_characters book.poem_character
Opera Character Marriage (of Fictional Characters) Clytemnestra
none none none
fictional_universe.marriage_of_fictional_characters.spouses fictional_universe.marriage_of_fictional_characters.spouses
Spouses Spouses
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_character . 
?x1 :type.object.type :fictional_universe.marriage_of_fictional_characters . 
VALUES ?x2 { :m.0fj_6g } 
?x1 :fictional_universe.marriage_of_fictional_characters.spouses ?x0 . 
?x1 :fictional_universe.marriage_of_fictional_characters.spouses ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND opera.opera_character (JOIN (R fictional_universe.marriage_of_fictional_characters.spouses) (JOIN fictional_universe.marriage_of_fictional_characters.spouses m.0fj_6g)))