question: Was a film 's prequel and sequel executive produced by M0 , M1 , M2 , M3 , and M4
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x0 ns:film.film.executive_produced_by M2 .
  ?x0 ns:film.film.executive_produced_by M3 .
  ?x0 ns:film.film.executive_produced_by M4 .
  ?x0 ns:film.film.prequel ?x1 .
  ?x0 ns:film.film.sequel ?x1 .
  ?x1 a ns:film.film
  }