question: Was a actor M1 's sequel 's editor , executive producer , director , and cinematographer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:film.cinematographer.film ?x1 .
  ?x0 ns:film.director.film ?x1 .
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x1 ns:film.film.prequel M1
  }