Was M2 edited by M1 's director and writer , edited by a cinematographer , and edited by M3
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x1 ns:film.director.film M1 .
?x1 ns:film.writer.film M1 .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.edited_by ?x1 .
M2 ns:film.film.edited_by M3
}