Did a film producer that M4 was directed by , M2 starred , and M3 starred edit M1
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:film.director.film M4 .
?x0 ns:film.editor.film M1
}