Was M1 a film producer that directed M4 , executive produced a film , and wrote M3
SELECT count(*) WHERE {
?x0 a ns:film.film .
M1 a ns:film.producer .
M1 ns:film.director.film M4 .
M1 ns:film.producer.films_executive_produced ?x0 .
M1 ns:film.writer.film M3
}