Was M2 employed by M3 and employed by M1 's female editor 's employer
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:film.editor.film M1 .
?x1 ns:people.person.gender ns:m.02zsn .
M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M2 ns:people.person.employment_history/ns:business.employment_tenure.company M3
}