Did M3 employ a Canadian female cinematographer , employ M4 , and employ M5
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:people.person.gender ns:m.02zsn .
?x0 ns:people.person.nationality ns:m.0d060g .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person M5
}