question: Were M2 , M3 , M4 , and M5 written by and edited by a French editor of M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c .
  M2 ns:film.film.edited_by ?x0 .
  M2 ns:film.film.written_by ?x0 .
  M3 ns:film.film.edited_by ?x0 .
  M3 ns:film.film.written_by ?x0 .
  M4 ns:film.film.edited_by ?x0 .
  M4 ns:film.film.written_by ?x0 .
  M5 ns:film.film.edited_by ?x0 .
  M5 ns:film.film.written_by ?x0
  }