Which screenwriter that M2 was written by and M3 was written by wrote and edited M1
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.writer .
?x0 ns:film.editor.film M1 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3
}