Was a film 's sequel edited by a actor and edited by M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.film.edited_by ?x1 .
?x0 ns:film.film.edited_by M0 .
?x0 ns:film.film.edited_by M1 .
?x0 ns:film.film.prequel ?x2 .
?x1 a ns:film.actor .
?x2 a ns:film.film
}