question: Did M1 executive produce M4 , executive produce M0 's prequel , and edit M2 and M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.sequel M0 .
  M1 ns:film.editor.film M2 .
  M1 ns:film.editor.film M3 .
  M1 ns:film.producer.films_executive_produced ?x0 .
  M1 ns:film.producer.films_executive_produced M4
  }