Who was employed by M1 and was employed by M3 's director 's female sibling 's employer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 ns:people.person.gender ns:m.02zsn .
?x2 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x3 .
?x3 ns:film.director.film M3 .
FILTER ( ?x2 != ?x3 )
}