question: Was a film director that M2 and M3 were edited by and were written by M0
query: SELECT count(*) WHERE {
  M0 a ns:film.director .
  M0 ns:film.editor.film M2 .
  M0 ns:film.editor.film M3 .
  M0 ns:film.writer.film M2 .
  M0 ns:film.writer.film M3
  }