question: Was M0 's executive producer a costume designer of M1 and M2
query: SELECT count(*) WHERE {
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M1 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M2 .
  ?x0 ns:film.producer.films_executive_produced M0
  }