question: Was M3 directed by M4 and executive produced by a American German star of M2
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.film M2 .
  ?x0 ns:people.person.nationality ns:m.0345h .
  ?x0 ns:people.person.nationality ns:m.09c7w0 .
  M3 ns:film.film.directed_by M4 .
  M3 ns:film.film.executive_produced_by ?x0
  }