What founder of M0 wrote and executive produced M1 's sequel
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.writer.film ?x1 .
?x0 ns:organization.organization_founder.organizations_founded M0 .
?x1 ns:film.film.prequel M1
}