Did M2 , M3 , and M4 employ a British film director
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:people.person.nationality ns:m.07ssc .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}