Were M2 and M3 founded by a child of M1 and founded by a star and executive producer of M0
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M0 .
?x0 ns:film.producer.films_executive_produced M0 .
?x1 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent M1 .
M2 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x1 .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x1
}