question: Were M2 , M4 , M5 , and M6 executive produced by M3 and executive produced by a Spanish film producer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:people.person.nationality ns:m.06mkj .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.executive_produced_by M3 .
  M4 ns:film.film.executive_produced_by ?x0 .
  M4 ns:film.film.executive_produced_by M3 .
  M5 ns:film.film.executive_produced_by ?x0 .
  M5 ns:film.film.executive_produced_by M3 .
  M6 ns:film.film.executive_produced_by ?x0 .
  M6 ns:film.film.executive_produced_by M3
  }