an opera whose date of first performance is before 11/08/1985 is in what opera genre?
Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity
m.02vqkqk m.01_22_ m.04dg7h2 m.04b7znm m.04m282 m.04mkyt5 m.02g129 m.052pc27 m.04b7d2r m.052jxz1 m.03c8g9x m.0gd6k3 m.0d8gp m.04llstk m.04b2fpl m.052bg4 m.04b7q58 m.0332nd m.04d7t6w m.04hynqs m.0gghh3
Romantische Oper Opera seria Opera in three acts Opera in one act Opéra comique Opera in five acts Singspiel Fairy tale opera Children's opera Opera in four acts Literaturoper Rescue opera Opera buffa Legende dramatique Opera in two acts Lyric tragedy Comic opera in two acts Comic opera Quasi un melodramma in three acts Lyric comedy Opera semi-seria
class class literal
opera.opera_genre opera.opera 1985-11-08^^http://www.w3.org/2001/XMLSchema#date
opera.opera_genre opera.opera type.datetime
Opera Genre Opera 11/08/1985
none none <
opera.opera.genre music.composition.date_of_first_performance
Genre Date of first performance
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_genre . 
?x1 :type.object.type :opera.opera . 
FILTER (?x2 < "1985-11-08-08:00"^^<http://www.w3.org/2001/XMLSchema#date>)
?x1 :opera.opera.genre ?x0 . 
?x1 :music.composition.date_of_first_performance ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND opera.opera_genre (JOIN (R opera.opera.genre) (lt music.composition.date_of_first_performance 1985-11-08^^http://www.w3.org/2001/XMLSchema#date)))