question: Were M1 and M5 directed by M2 , executive produced by a person , and directed by M3 and M4
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  M1 ns:film.film.directed_by M2 .
  M1 ns:film.film.directed_by M3 .
  M1 ns:film.film.directed_by M4 .
  M1 ns:film.film.executive_produced_by ?x0 .
  M5 ns:film.film.directed_by M2 .
  M5 ns:film.film.directed_by M3 .
  M5 ns:film.film.directed_by M4 .
  M5 ns:film.film.executive_produced_by ?x0
  }