Were M1 and M4 edited by M2 , directed by M0 's sequel 's editor and star , and edited by M3
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:film.editor.film ?x1 .
?x1 ns:film.film.prequel M0 .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.edited_by M2 .
M1 ns:film.film.edited_by M3 .
M4 ns:film.film.directed_by ?x0 .
M4 ns:film.film.edited_by M2 .
M4 ns:film.film.edited_by M3
}