Was M4 acquired by a film distributor that M1 , M2 , and M3 founded
SELECT count(*) WHERE {
?x0 a ns:film.film_distributor .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3 .
M4 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0
}