What film distributor employed a executive producer and writer of M1
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_distributor .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:film.producer.films_executive_produced M1 .
?x1 ns:film.writer.film M1
}