Was M1 M0 's prequel 's American German producer
SELECT count(*) WHERE {
?x0 ns:film.film.sequel M0 .
M1 ns:film.producer.film|ns:film.production_company.films ?x0 .
M1 ns:people.person.nationality ns:m.0345h .
M1 ns:people.person.nationality ns:m.09c7w0
}