Was M1 directed by and written by a film 's director , writer , and editor
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:film.editor.film ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 a ns:film.film .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.written_by ?x0
}