question: Was M5 executive produced by M6 and M7 and edited by a Swedish editor of M1 , M2 , M3 , and M4
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.editor.film M3 .
  ?x0 ns:film.editor.film M4 .
  ?x0 ns:people.person.nationality ns:m.0d0vqn .
  M5 ns:film.film.edited_by ?x0 .
  M5 ns:film.film.executive_produced_by M6 .
  M5 ns:film.film.executive_produced_by M7
  }