Were M1 and M3 edited by M2 and produced by M0 's sequel 's cinematographer and editor
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film ?x1 .
?x0 ns:film.editor.film ?x1 .
?x1 ns:film.film.prequel M0 .
M1 ns:film.film.edited_by M2 .
M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M3 ns:film.film.edited_by M2 .
M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}