Were M4 and M6 produced by a Chinese writer of M0 , M1 , and M2 and edited by M5
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.edited_by M5 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M6 ns:film.film.edited_by M5 .
M6 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}