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