What did M1 , M2 , M3 , and M4 edit , a film editor executive produce , and M0 produce
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.edited_by M1 .
?x0 ns:film.film.edited_by M2 .
?x0 ns:film.film.edited_by M3 .
?x0 ns:film.film.edited_by M4 .
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies M0 .
?x1 a ns:film.editor
}