Did a Canadian editor of M2 , M3 , M4 , M5 , and M6 executive produce M0
SELECT count(*) WHERE {
?x0 ns:film.editor.film M2 .
?x0 ns:film.editor.film M3 .
?x0 ns:film.editor.film M4 .
?x0 ns:film.editor.film M5 .
?x0 ns:film.editor.film M6 .
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:people.person.nationality ns:m.0d060g
}