question: What was a film distributor whose employee founded M1 and M2 and founded M3 and M4
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film_distributor .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x1 ns:organization.organization_founder.organizations_founded M1 .
  ?x1 ns:organization.organization_founder.organizations_founded M2 .
  ?x1 ns:organization.organization_founder.organizations_founded M3 .
  ?x1 ns:organization.organization_founder.organizations_founded M4
  }