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