Were M1 and M2 written by M0 's prequel 's writer , executive producer , editor , and star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:film.editor.film ?x1 .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 ns:film.film.sequel M0 .
M1 ns:film.film.written_by ?x0 .
M2 ns:film.film.written_by ?x0
}