Did M4 employ M5 and M6 and employ a costume designer of M0 , M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 ns:film.film_costumer_designer.costume_design_for_film M0 .
?x0 ns:film.film_costumer_designer.costume_design_for_film M1 .
?x0 ns:film.film_costumer_designer.costume_design_for_film M2 .
?x0 ns:film.film_costumer_designer.costume_design_for_film M3 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person M6
}