What Canadian editor of M3 and M4 wrote M0 and M1 and directed M5 and M6
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.director.film M5 .
?x0 ns:film.director.film M6 .
?x0 ns:film.editor.film M3 .
?x0 ns:film.editor.film M4 .
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1 .
?x0 ns:people.person.nationality ns:m.0d060g
}