Was M2 executive produced by M3 , edited by a Canadian actor , and written by M4 and M5
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:people.person.nationality ns:m.0d060g .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.written_by M4 .
M2 ns:film.film.written_by M5
}