Did M2 employ M1 's executive producer and employ M0 's director and art director
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.film_art_director.films_art_directed M0 .
?x1 ns:film.producer.films_executive_produced M1 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x1
}