Did M1 and M4 employ a film 's executive producer , employ M2 , and employ M3
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 a ns:film.film .
M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person M3
}