question: Were M3 and M4 executive produced by a Spanish person and directed by a director of M2
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:people.person.nationality ns:m.06mkj .
  ?x1 ns:film.director.film M2 .
  M3 ns:film.film.directed_by ?x1 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M4 ns:film.film.directed_by ?x1 .
  M4 ns:film.film.executive_produced_by ?x0
  }