question: What production company employed a editor and executive producer of M4 , was founded by M1 , and employed M2 and M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.production_company .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  ?x0 ns:organization.organization.founders M1 .
  ?x1 ns:film.editor.film M4 .
  ?x1 ns:film.producer.films_executive_produced M4
  }