question: Were M0 and M3 directed and written by M1 and M2
query: SELECT count(*) WHERE {
  M0 ns:film.film.directed_by M1 .
  M0 ns:film.film.directed_by M2 .
  M0 ns:film.film.written_by M1 .
  M0 ns:film.film.written_by M2 .
  M3 ns:film.film.directed_by M1 .
  M3 ns:film.film.directed_by M2 .
  M3 ns:film.film.written_by M1 .
  M3 ns:film.film.written_by M2
  }