question: Was M1 a female German director of M0 's prequel
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.sequel M0 .
  M1 ns:film.director.film ?x0 .
  M1 ns:people.person.gender ns:m.02zsn .
  M1 ns:people.person.nationality ns:m.0345h
  }