Did M0 's founder executive produce a film and write M1 's prequel
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.writer.film ?x2 .
?x0 ns:organization.organization_founder.organizations_founded M0 .
?x1 a ns:film.film .
?x2 ns:film.film.sequel M1
}