Which film editor whose country of nationality employed M4 's employee edited M1 , directed M3 , and wrote M2
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.editor .
?x0 ns:film.director.film M3 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:people.person.nationality ?x1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M4
}