Did a executive producer and producer of M0 direct , write , and produce a prequel of M1
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
?x0 ns:film.producer.film|ns:film.production_company.films M0 .
?x0 ns:film.writer.film ?x1 .
?x1 ns:film.film.sequel M1
}