Was a person a female costume designer of M1 and M2
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.film_costumer_designer.costume_design_for_film M1 .
?x0 ns:film.film_costumer_designer.costume_design_for_film M2 .
?x0 ns:people.person.gender ns:m.02zsn
}