Were M1 and M3 produced by a executive producer and writer of M0 's sequel and produced by M2
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 ns:film.film.prequel M0 .
M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M3 ns:film.film.produced_by|ns:film.film.production_companies M2
}