Was M2 's sequel 's executive producer and writer M1 's Chinese director
SELECT count(*) WHERE {
?x0 ns:film.director.film M1 .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.writer.film ?x1 .
?x0 ns:people.person.nationality ns:m.0d05w3 .
?x1 ns:film.film.prequel M2
}