question: Was a film editor that M1 was edited and written by a French director of M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.director.film M3 .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c
  }