Who edited and wrote M1 's sequel 's prequel
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.editor.film ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 ns:film.film.sequel ?x2 .
?x2 ns:film.film.prequel M1
}