Did a Chinese actor edit M1 and direct M3 and M4
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:film.director.film M3 .
?x0 ns:film.director.film M4 .
?x0 ns:film.editor.film M1 .
?x0 ns:people.person.nationality ns:m.0d05w3
}