question: Was M1 's spouse a costume designer whose employer produced M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_costumer_designer .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M1 .
  ?x1 ns:film.producer.film|ns:film.production_company.films M2 .
  FILTER ( ?x0 != M1 )
  }