Were M2 , M3 , and M4 written by and executive produced by a film director that wrote and executive produced M1
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:film.writer.film M1 .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.written_by ?x0 .
M3 ns:film.film.executive_produced_by ?x0 .
M3 ns:film.film.written_by ?x0 .
M4 ns:film.film.executive_produced_by ?x0 .
M4 ns:film.film.written_by ?x0
}