Was M4 's distributor 's employee and founder a film director whose sibling founded M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x2 .
?x1 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M4 .
?x2 ns:organization.organization_founder.organizations_founded M1 .
?x2 ns:organization.organization_founder.organizations_founded M2 .
?x2 ns:organization.organization_founder.organizations_founded M3 .
FILTER ( ?x0 != ?x2 )
}