question: Did M1 star M0 's executive producer and star M2 , M3 , M4 , and M5
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.films_executive_produced M0 .
  M1 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M1 ns:film.film.starring/ns:film.performance.actor M2 .
  M1 ns:film.film.starring/ns:film.performance.actor M3 .
  M1 ns:film.film.starring/ns:film.performance.actor M4 .
  M1 ns:film.film.starring/ns:film.performance.actor M5
  }