question: Did M2 marry a Spanish art director
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  ?x0 ns:people.person.nationality ns:m.06mkj .
  FILTER ( M2 != ?x0 ) .
  M2 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x0
  }