Was M3 M2 's female American editor 's employer
SELECT count(*) WHERE {
?x0 ns:film.editor.film M2 .
?x0 ns:people.person.gender ns:m.02zsn .
?x0 ns:people.person.nationality ns:m.09c7w0 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}