Did M0 and M2 executive produce and produce M1
SELECT count(*) WHERE {
M0 ns:film.producer.films_executive_produced M1 .
M0 ns:film.producer.film|ns:film.production_company.films M1 .
M2 ns:film.producer.films_executive_produced M1 .
M2 ns:film.producer.film|ns:film.production_company.films M1
}