question: Was a screenwriter that executive produced , directed , and wrote M1 and M2 M4 's Mexican parent
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:film.director.film M1 .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:film.producer.films_executive_produced M1 .
  ?x0 ns:film.producer.films_executive_produced M2 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M4 .
  ?x0 ns:people.person.nationality ns:m.0b90_r
  }