Was M4 's employer a film distributor that M1 , M2 , and M3 founded
SELECT count(*) WHERE {
?x0 a ns:film.film_distributor .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3
}