Did M1 executive produce M2 , executive produce M3 , and edit M0 's prequel
SELECT count(*) WHERE {
?x0 ns:film.film.sequel M0 .
M1 ns:film.editor.film ?x0 .
M1 ns:film.producer.films_executive_produced M2 .
M1 ns:film.producer.films_executive_produced M3
}