What was executive produced by M0 , executive produced by a writer of M3 and M4 , and executive produced by M1 and M2
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.executive_produced_by M0 .
?x0 ns:film.film.executive_produced_by M1 .
?x0 ns:film.film.executive_produced_by M2 .
?x1 ns:film.writer.film M3 .
?x1 ns:film.writer.film M4
}