What prequel of M2 's prequel did M0 and M1 produce and edit
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.edited_by M0 .
?x0 ns:film.film.edited_by M1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies M0 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies M1 .
?x0 ns:film.film.sequel ?x1 .
?x1 ns:film.film.sequel M2
}