Was a costume designer that directed M3 , M4 , and M5 employed by M1 and employed by M2
SELECT count(*) WHERE {
?x0 a ns:film.film_costumer_designer .
?x0 ns:film.director.film M3 .
?x0 ns:film.director.film M4 .
?x0 ns:film.director.film M5 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2
}