Which person that M6 employed edited M1 and M2 and edited M3 , M4 , and M5
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.editor.film M3 .
?x0 ns:film.editor.film M4 .
?x0 ns:film.editor.film M5 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M6
}