Did M2 , M4 , and M5 star a Canadian film editor and star M3
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:people.person.nationality ns:m.0d060g .
M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
M2 ns:film.film.starring/ns:film.performance.actor M3 .
M4 ns:film.film.starring/ns:film.performance.actor ?x0 .
M4 ns:film.film.starring/ns:film.performance.actor M3 .
M5 ns:film.film.starring/ns:film.performance.actor ?x0 .
M5 ns:film.film.starring/ns:film.performance.actor M3
}