Did M2 's prequel 's producer executive produce M0 and executive produce a sequel of M1
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x2 .
?x1 ns:film.film.prequel M1 .
?x2 ns:film.film.sequel M2
}