Was M1 directed by M4 , written by M2 , written by M3 , and edited by a actor
SELECT count(*) WHERE {
?x0 a ns:film.actor .
M1 ns:film.film.directed_by M4 .
M1 ns:film.film.edited_by ?x0 .
M1 ns:film.film.written_by M2 .
M1 ns:film.film.written_by M3
}