question: Who was a film director that M2 was edited by , M4 starred , and M3 was edited by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.director .
  ?x0 a ns:people.person .
  ?x0 ns:film.actor.film/ns:film.performance.film M4 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.editor.film M3
  }