Were M2 and M3 directed and produced by a German film director that M0 was directed by and written by
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.writer.film M0 .
?x0 ns:people.person.nationality ns:m.0345h .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}