question: Did M1 and M4 produce a film , edit M2 and M3 , and executive produce a film
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x1 a ns:film.film .
  M1 ns:film.editor.film M2 .
  M1 ns:film.editor.film M3 .
  M1 ns:film.producer.films_executive_produced ?x0 .
  M1 ns:film.producer.film|ns:film.production_company.films ?x1 .
  M4 ns:film.editor.film M2 .
  M4 ns:film.editor.film M3 .
  M4 ns:film.producer.films_executive_produced ?x0 .
  M4 ns:film.producer.film|ns:film.production_company.films ?x1
  }