Did a parent of a executive producer and producer of M1 and M2 executive produce M0
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
?x1 ns:film.producer.films_executive_produced M1 .
?x1 ns:film.producer.films_executive_produced M2 .
?x1 ns:film.producer.film|ns:film.production_company.films M1 .
?x1 ns:film.producer.film|ns:film.production_company.films M2
}