question: Who was a Swedish costume designer of M1 , M2 , M3 , M4 , M5 , and M6
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M1 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M2 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M3 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M4 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M5 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M6 .
  ?x0 ns:people.person.nationality ns:m.0d0vqn
  }