Did M3 employ M2 's employee , employ M4 , employ a film director , and employ a person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x1 a ns:film.director .
?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person M4
}