question: Was M1 a costume designer that M3 was executive produced by and a film was executive produced by
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  M1 a ns:film.film_costumer_designer .
  M1 ns:film.producer.films_executive_produced ?x0 .
  M1 ns:film.producer.films_executive_produced M3
  }