Was M2 edited by M4 , executive produced by a Canadian executive producer of M0 , and written by M3
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:people.person.nationality ns:m.0d060g .
M2 ns:film.film.edited_by M4 .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.written_by M3
}