question: Which character wrote , edited , and directed a film
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:fictional_universe.fictional_character .
  ?x0 ns:film.director.film ?x1 .
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:film.writer.film ?x1 .
  ?x1 a ns:film.film
  }