question: Was M0 a German screenwriter that wrote M2 , M3 , M4 , and M5
query: SELECT count(*) WHERE {
  M0 a ns:film.writer .
  M0 ns:film.writer.film M2 .
  M0 ns:film.writer.film M3 .
  M0 ns:film.writer.film M4 .
  M0 ns:film.writer.film M5 .
  M0 ns:people.person.nationality ns:m.0345h
  }