Who was a Canadian film director that edited M2 and M3 and edited M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.director .
?x0 a ns:people.person .
?x0 ns:film.editor.film M2 .
?x0 ns:film.editor.film M3 .
?x0 ns:film.editor.film M4 .
?x0 ns:people.person.nationality ns:m.0d060g
}