Did M2 and M4 write M0 's sequel , write M3 , and executive produce a film
SELECT count(*) WHERE {
?x0 ns:film.film.prequel M0 .
?x1 a ns:film.film .
M2 ns:film.producer.films_executive_produced ?x1 .
M2 ns:film.writer.film ?x0 .
M2 ns:film.writer.film M3 .
M4 ns:film.producer.films_executive_produced ?x1 .
M4 ns:film.writer.film ?x0 .
M4 ns:film.writer.film M3
}