Were M2 , M3 , M4 , M5 , and M6 employed by a Canadian film producer 's employer
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 a ns:film.producer .
?x1 ns:people.person.nationality ns:m.0d060g .
M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M3 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M4 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M5 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M6 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
}