Which person executive produced a film that was executive produced by , written by , and produced by M2
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 a ns:film.film .
?x1 ns:film.film.executive_produced_by M2 .
?x1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
?x1 ns:film.film.written_by M2
}