question: Were M4 and M5 directed by a screenwriter that M3 was edited by and edited by M1 's German editor
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:people.person.nationality ns:m.0345h .
  ?x1 a ns:film.writer .
  ?x1 ns:film.editor.film M3 .
  M4 ns:film.film.directed_by ?x1 .
  M4 ns:film.film.edited_by ?x0 .
  M5 ns:film.film.directed_by ?x1 .
  M5 ns:film.film.edited_by ?x0
  }