question: What did a film editor that edited M1 write and executive produce
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 a ns:film.editor .
  ?x1 ns:film.editor.film M1
  }