Which film was executive produced by M1 and M2 , written by M3 , and written by M4 's writer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film .
?x0 ns:film.film.executive_produced_by M1 .
?x0 ns:film.film.executive_produced_by M2 .
?x0 ns:film.film.written_by ?x1 .
?x0 ns:film.film.written_by M3 .
?x1 ns:film.writer.film M4
}