Were M2 , M4 , M5 , and M6 produced by a French costume designer 's employer and written by M3
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 a ns:film.film_costumer_designer .
?x1 ns:people.person.nationality ns:m.0f8l9c .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M2 ns:film.film.written_by M3 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M4 ns:film.film.written_by M3 .
M5 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M5 ns:film.film.written_by M3 .
M6 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M6 ns:film.film.written_by M3
}