Did M1 employ a writer and costume designer of a film , employ M2 and M3 , and employ M4
SELECT count(*) WHERE {
?x0 ns:film.film_costumer_designer.costume_design_for_film ?x1 .
?x0 ns:film.writer.film ?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 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person M4
}