Did M4 's prequel 's producer write M0 and M1 , executive produce M2 , and produce M3
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
?x0 ns:film.producer.film|ns:film.production_company.films M3 .
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1 .
?x1 ns:film.film.sequel M4
}