name the broadcasts of genre rock music by bobby helm.
Entity Entity Entity
m.03gbwvt m.03gbwqy m.03gfwc8
WWRW . The World Wide Radio Web Ultimate Oldies Channel WEAT Sunny 104.3
class entity entity
broadcast.content m.06by7 m.01lvpwg
broadcast.content broadcast.genre broadcast.artist
Broadcast Content Rock music Bobby Helm
none none none
broadcast.genre.content broadcast.content.artist
Content Artists
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.content . 
VALUES ?x1 { :m.06by7 } 
VALUES ?x2 { :m.01lvpwg } 
?x1 :broadcast.genre.content ?x0 . 
?x0 :broadcast.content.artist ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND broadcast.content (AND (JOIN (R broadcast.genre.content) m.06by7) (JOIN broadcast.content.artist m.01lvpwg)))