question: Was a film edited by and written by M1 's writer and cinematographer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.edited_by ?x1 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 ns:film.cinematographer.film M1 .
  ?x1 ns:film.writer.film M1
  }