broadcast content which started production before 1933 was of what genre?
Entity Entity Entity Entity
m.06q7n m.04xk5b m.025klt m.04f0p78
Soap opera Religious broadcasting Radio comedy Current events
class class literal
broadcast.genre broadcast.content 1933^^http://www.w3.org/2001/XMLSchema#gYear
broadcast.genre broadcast.content type.datetime
Broadcast Genre Broadcast Content 1933
none none <
broadcast.content.genre broadcast.content.production_start
Genres Production Start
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 :broadcast.genre . 
?x1 :type.object.type :broadcast.content . 
FILTER (?x2 < "1933-08:00"^^<http://www.w3.org/2001/XMLSchema#gYear>)
?x1 :broadcast.content.genre ?x0 . 
?x1 :broadcast.content.production_start ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND broadcast.genre (JOIN (R broadcast.content.genre) (lt broadcast.content.production_start 1933^^http://www.w3.org/2001/XMLSchema#gYear)))