Were M2 and M4 directed by a film editor , directed by a screenwriter , and executive produced by M3
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x1 a ns:film.editor .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.directed_by ?x1 .
M2 ns:film.film.executive_produced_by M3 .
M4 ns:film.film.directed_by ?x0 .
M4 ns:film.film.directed_by ?x1 .
M4 ns:film.film.executive_produced_by M3
}