question: Was M3 's Spanish director M2 's Mexican actor
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character M2 .
  ?x0 ns:film.director.film M3 .
  ?x0 ns:people.person.nationality ns:m.06mkj .
  ?x0 ns:people.person.nationality ns:m.0b90_r
  }