Was M1 written by M2 and directed by a producer , writer , and editor of M0 's sequel
SELECT count(*) WHERE {
?x0 ns:film.editor.film ?x1 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 ns:film.film.prequel M0 .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.written_by M2
}