Did M0 's parent employ a director of M1 , M2 , M3 , and M4
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M0 .
?x1 ns:film.director.film M1 .
?x1 ns:film.director.film M2 .
?x1 ns:film.director.film M3 .
?x1 ns:film.director.film M4
}