question: Was a film that was executive produced by and directed by M1 executive produced by and written by a film editor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.directed_by M1 .
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 a ns:film.editor
  }