Was M2 executive produced by M3 , produced by a Canadian person 's employer , and edited by M4
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 a ns:people.person .
?x1 ns:people.person.nationality ns:m.0d060g .
M2 ns:film.film.edited_by M4 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}