Did M3 's prequel 's Canadian writer produce M1 and M2
SELECT count(*) WHERE {
?x0 ns:film.producer.film|ns:film.production_company.films M1 .
?x0 ns:film.producer.film|ns:film.production_company.films M2 .
?x0 ns:film.writer.film ?x1 .
?x0 ns:people.person.nationality ns:m.0d060g .
?x1 ns:film.film.sequel M3
}