Were M2 and M3 edited by M1 's sequel 's male editor
SELECT count(*) WHERE {
?x0 ns:film.editor.film ?x1 .
?x0 ns:people.person.gender ns:m.05zppz .
?x1 ns:film.film.prequel M1 .
M2 ns:film.film.edited_by ?x0 .
M3 ns:film.film.edited_by ?x0
}