question: Did M6 's editor and star executive produce M2 , M3 , M4 , and M5 and write M0 and M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.film M6 .
  ?x0 ns:film.editor.film M6 .
  ?x0 ns:film.producer.films_executive_produced M2 .
  ?x0 ns:film.producer.films_executive_produced M3 .
  ?x0 ns:film.producer.films_executive_produced M4 .
  ?x0 ns:film.producer.films_executive_produced M5 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1
  }