which recording engineer was featured in dear john?
Entity Entity Entity
m.0vy6dgm m.0vz6rg6 m.049f6ly
Ken Desantis Bill Kaylor Chris Garrett
class class class entity
music.engineer music.recording music.featured_artist m.0fsg91_
music.engineer music.recording music.featured_artist music.recording
Recording Engineer Musical Recording Featured artist Dear John
none none none none
music.engineer.tracks_engineered music.featured_artist.recordings music.recording.featured_artists
Recordings engineered Recordings Featured 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 :music.engineer . 
?x1 :type.object.type :music.recording . 
?x2 :type.object.type :music.featured_artist . 
VALUES ?x3 { :m.0fsg91_ } 
?x0 :music.engineer.tracks_engineered ?x1 . 
?x2 :music.featured_artist.recordings ?x1 . 
?x3 :music.recording.featured_artists ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x0 != ?x3 && ?x1 != ?x2 && ?x1 != ?x3 && ?x2 != ?x3  )
}
}
(AND music.engineer (JOIN music.engineer.tracks_engineered (JOIN (R music.featured_artist.recordings) (JOIN (R music.recording.featured_artists) m.0fsg91_))))