Were M2 , M3 , and M4 directed by and written by a screenwriter that M1 was directed and written by
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:film.director.film M1 .
?x0 ns:film.writer.film M1 .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.written_by ?x0 .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.written_by ?x0 .
M4 ns:film.film.directed_by ?x0 .
M4 ns:film.film.written_by ?x0
}