question: Did a Swedish film editor produce M2 , M3 , M4 , M5 , and M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.producer.film|ns:film.production_company.films M2 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M3 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M4 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M5 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M6 .
  ?x0 ns:people.person.nationality ns:m.0d0vqn
  }