Did M2 star a person , star M0 's executive producer , and star M3 and M4
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x1 a ns:people.person .
M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
M2 ns:film.film.starring/ns:film.performance.actor ?x1 .
M2 ns:film.film.starring/ns:film.performance.actor M3 .
M2 ns:film.film.starring/ns:film.performance.actor M4
}