What was edited by a film director , edited by M1 , edited by M2 , and written by M0
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.edited_by ?x1 .
?x0 ns:film.film.edited_by M1 .
?x0 ns:film.film.edited_by M2 .
?x0 ns:film.film.written_by M0 .
?x1 a ns:film.director
}