Did a cinematographer that executive produced a film direct M1 , M2 , M3 , and M4
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.director.film M3 .
?x0 ns:film.director.film M4 .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 a ns:film.film
}