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