Was M4 directed by a Chinese writer of M0 , M1 , and M2
SELECT count(*) WHERE {
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:people.person.nationality ns:m.0d05w3 .
M4 ns:film.film.directed_by ?x0
}