question: Which film was executive produced by M4 , M5 , M6 , and M7 and starred M1 , M2 , and M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.executive_produced_by M4 .
  ?x0 ns:film.film.executive_produced_by M5 .
  ?x0 ns:film.film.executive_produced_by M6 .
  ?x0 ns:film.film.executive_produced_by M7 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M1 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M2 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M3
  }