Did M1 direct M3 and M4 , write M2 , and executive produce M0 's prequel
SELECT count(*) WHERE {
?x0 ns:film.film.sequel M0 .
M1 ns:film.director.film M3 .
M1 ns:film.director.film M4 .
M1 ns:film.producer.films_executive_produced ?x0 .
M1 ns:film.writer.film M2
}