Which film producer founded M1 and was employed by a film distributor acquired by M3 and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.producer .
?x0 ns:organization.organization_founder.organizations_founded M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 a ns:film.film_distributor .
?x1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M3 .
?x1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M4
}